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Dinner / Sonic Double Smasher: The Ultimate Guide, Tips, and Review

Sonic Double Smasher: The Ultimate Guide, Tips, and Review

August 29, 2025 by JannaDinner

Sonic Double Smasher: Prepare to embark on a culinary adventure that will transport your taste buds straight to burger paradise! Forget waiting in long drive-thru lines; we’re bringing the iconic, craveable flavor of the Sonic Double Smasher right to your kitchen. This isn’t just another burger recipe; it’s a journey into the heart of American fast-food nostalgia, reimagined for the home cook.

While the precise origins of the “smashed burger” are debated, its popularity has exploded in recent years, thanks to its irresistibly crispy edges and juicy center. The technique, which involves pressing the burger patty thin onto a hot griddle, creates maximum surface area for that delicious Maillard reaction – the browning process that gives food its rich, savory flavor. The Sonic Double Smasher takes this concept to the next level with its perfectly balanced toppings and signature sauce.

What makes the Sonic Double Smasher so beloved? It’s the symphony of textures and tastes: the crisp, caramelized beef, the melty cheese, the tangy pickles, and the creamy, slightly sweet sauce, all nestled within a soft, toasted bun. It’s the ultimate comfort food, satisfyingly indulgent yet surprisingly easy to recreate at home. So, ditch the takeout menu and get ready to experience burger bliss with our step-by-step guide to crafting the perfect Sonic Double Smasher. You won’t be disappointed!

Sonic Double Smasher this Recipe

Ingredients:

  • For the Smashed Patties:
    • 1.5 lbs Ground Beef (80/20 blend recommended for optimal flavor and fat content)
    • 1 tbsp Worcestershire Sauce
    • 1 tsp Garlic Powder
    • 1 tsp Onion Powder
    • 1/2 tsp Smoked Paprika
    • 1/2 tsp Black Pepper, freshly ground
    • 1 tsp Salt, or to taste
  • For the Sonic Sauce:
    • 1/2 cup Mayonnaise
    • 2 tbsp Ketchup
    • 1 tbsp Yellow Mustard
    • 1 tbsp Sweet Pickle Relish
    • 1 tsp White Vinegar
    • 1/2 tsp Garlic Powder
    • 1/4 tsp Paprika
    • Pinch of Cayenne Pepper (optional, for a little kick)
  • For Assembly:
    • 4 Brioche Buns, or your favorite burger buns
    • 8 slices American Cheese
    • 1 large White Onion, thinly sliced
    • Dill Pickle Chips, for serving
    • Lettuce (optional)
    • Tomato slices (optional)

Preparing the Sonic Sauce:

Okay, let’s start with the star of the show – the Sonic Sauce! This is what really makes this burger sing. It’s super easy to whip up and tastes amazing. Trust me, you’ll want to put this on everything!

  1. In a medium-sized bowl, combine the mayonnaise, ketchup, yellow mustard, sweet pickle relish, white vinegar, garlic powder, paprika, and cayenne pepper (if using).
  2. Whisk all the ingredients together until they are fully incorporated and the sauce is smooth and creamy.
  3. Taste the sauce and adjust the seasonings as needed. If you prefer a sweeter sauce, add a touch more relish. For a tangier sauce, add a little more vinegar.
  4. Cover the bowl with plastic wrap and refrigerate the sauce for at least 30 minutes to allow the flavors to meld together. This step is crucial for developing the best flavor. The longer it sits, the better it gets! You can even make it a day ahead.

Preparing the Smashed Patties:

Now, let’s move on to the heart of the burger – the smashed patties! The key here is to get a nice, thin patty with crispy edges. This is where the magic happens!

  1. In a large bowl, gently combine the ground beef, Worcestershire sauce, garlic powder, onion powder, smoked paprika, black pepper, and salt. Be careful not to overmix the meat, as this can result in tough patties. Just mix until everything is evenly distributed.
  2. Divide the meat mixture into 8 equal portions. I like to use a kitchen scale to ensure they are all the same size, about 3 ounces each. This helps with even cooking.
  3. Form each portion into a loose ball. Do not pack the meat tightly. We want them to be loose and airy for the smashing process.
  4. Place a large cast iron skillet or griddle over medium-high heat. You want it to be screaming hot! A hot surface is essential for achieving that beautiful sear and crispy edges.
  5. Once the skillet is hot, lightly grease it with a small amount of oil or cooking spray.
  6. Place four of the meat balls onto the hot skillet, leaving enough space between them.
  7. Immediately place a piece of parchment paper over each meat ball. This prevents the spatula from sticking.
  8. Using a heavy-bottomed spatula or a burger press, firmly press down on each meat ball to smash it into a thin patty, about 1/4 inch thick. The thinner, the better!
  9. Remove the parchment paper and cook the patties for about 2-3 minutes per side, or until they are nicely browned and crispy around the edges. You should see a good sear forming.
  10. Flip the patties and cook for another 1-2 minutes.
  11. During the last minute of cooking, place a slice of American cheese on top of each patty and let it melt.
  12. Remove the patties from the skillet and set aside. Repeat the process with the remaining meat balls.

Caramelizing the Onions (Optional but Highly Recommended):

While the onions are optional, I strongly recommend taking the extra time to caramelize them. They add a layer of sweetness and depth of flavor that really elevates the burger. This step can be done while the patties are resting or even a day in advance.

  1. Heat a tablespoon of olive oil or butter in a large skillet over medium-low heat.
  2. Add the thinly sliced white onions to the skillet.
  3. Cook the onions slowly, stirring occasionally, for about 30-45 minutes, or until they are deeply golden brown and caramelized. The key is low and slow! Don’t rush the process.
  4. If the onions start to stick to the skillet, add a tablespoon of water or beef broth to deglaze the pan.
  5. Season the caramelized onions with a pinch of salt and pepper.
  6. Remove the onions from the skillet and set aside.

Assembling the Sonic Double Smasher:

Alright, we’re in the home stretch! It’s time to assemble our masterpiece. Get ready for burger bliss!

  1. Lightly toast the brioche buns. This adds a nice texture and prevents them from getting soggy.
  2. Spread a generous amount of Sonic Sauce on both the top and bottom buns. Don’t be shy!
  3. Place two smashed patties, each topped with melted American cheese, on the bottom bun.
  4. Top the patties with a layer of caramelized onions (if using).
  5. Add dill pickle chips to your liking.
  6. If desired, add lettuce and tomato slices.
  7. Place the top bun on top and gently press down to compress the burger slightly.
  8. Serve immediately and enjoy your homemade Sonic Double Smasher!

Tips for the Best Smashed Burgers:

  • Use the Right Meat: 80/20 ground beef is ideal for smashed burgers because it has enough fat to create crispy edges and a juicy patty.
  • Don’t Overmix: Overmixing the meat will result in tough burgers. Gently combine the ingredients until just mixed.
  • Hot Skillet is Key: Make sure your skillet or griddle is screaming hot before adding the meat. This is essential for achieving a good sear and crispy edges.
  • Smash it Thin: The thinner the patty, the better the crispy edges. Use a heavy-bottomed spatula or burger press to smash the meat as thin as possible.
  • Don’t Move the Patties: Once you place the patties on the hot skillet, don’t move them until they are ready to be flipped. This allows a good sear to form.
  • Cheese it Up: American cheese is the classic choice for smashed burgers, but feel free to experiment with other cheeses like cheddar, provolone, or pepper jack.
  • Toast the Buns: Toasting the buns adds a nice texture and prevents them from getting soggy.
  • Don’t Forget the Sauce: The Sonic Sauce is what really makes this burger special. Don’t skimp on the sauce!
Variations:
  • Spicy Smasher: Add a pinch of cayenne pepper to the meat mixture or the Sonic Sauce for a little kick.
  • Bacon Smasher: Add crispy bacon to the burger for extra flavor and texture.
  • Mushroom Smasher: Sauté sliced mushrooms and add them to the burger along with the caramelized onions.
  • Jalapeño Smasher: Add pickled jalapeños to the burger for a spicy and tangy flavor.
  • Deluxe Smasher: Add a fried egg to the burger for a truly decadent experience.
Serving Suggestions:

Serve your Sonic Double Smasher with your favorite sides, such as:

  • French Fries
  • Onion Rings
  • Sweet Potato Fries
  • Coleslaw
  • Potato Salad

Enjoy!

Sonic Double Smasher

Conclusion:

So, there you have it! This Sonic Double Smasher recipe isn’t just another burger; it’s a flavor explosion waiting to happen. I truly believe this is a must-try for any burger aficionado. The crispy, caramelized edges of the smashed patties, combined with the tangy Sonic sauce and the fresh toppings, create a symphony of textures and tastes that will leave you craving more. It’s quick, it’s easy, and it delivers that authentic Sonic drive-in experience right in your own kitchen. What’s not to love?

Why is this recipe a must-try? Because it perfectly captures the essence of a classic Sonic burger, but with the added satisfaction of knowing you made it yourself. You control the quality of the ingredients, ensuring a fresher, more flavorful burger than you could ever get from a fast-food joint. Plus, the smashing technique creates those irresistible crispy edges that are the hallmark of a truly great smash burger. Trust me, once you try this method, you’ll never go back to regular burger patties again!

But the fun doesn’t stop there! This recipe is incredibly versatile. Feel free to experiment with different toppings to create your own signature Sonic Double Smasher. Try adding some crispy bacon for a smoky kick, or maybe some grilled onions for a touch of sweetness. For a spicier version, consider adding some jalapeños or a drizzle of sriracha mayo. If you’re feeling adventurous, you could even try using different types of cheese, like pepper jack or provolone.

Serving Suggestions and Variations:

* Serve your Sonic Double Smasher with a side of crispy tater tots or onion rings for the complete Sonic experience.
* For a lighter option, try serving it on a lettuce wrap instead of a bun.
* Make it a triple! If you’re feeling extra hungry, add another smashed patty for an even more indulgent burger.
* Consider making a batch of homemade Sonic sauce to really elevate the flavor. There are tons of recipes online, and it’s surprisingly easy to make.
* Don’t forget the drinks! A classic cherry limeade or a chocolate shake would be the perfect accompaniment to your Sonic Double Smasher.

I’m so excited for you to try this recipe and experience the deliciousness for yourself. I’ve poured my heart into perfecting it, and I’m confident that you’ll love it just as much as I do.

So, what are you waiting for? Gather your ingredients, fire up your griddle, and get ready to create the ultimate Sonic Double Smasher. I promise you won’t be disappointed.

And most importantly, I want to hear about your experience! Did you make any modifications to the recipe? What toppings did you use? How did it turn out? Share your photos and stories in the comments below. I can’t wait to see your creations and hear your feedback. Happy cooking!


Sonic Double Smasher: The Ultimate Guide, Tips, and Review

Juicy double smashed burgers with crispy edges, topped with a tangy homemade Sonic Sauce, melted American cheese, and caramelized onions, all nestled in a toasted brioche bun.

Prep Time20 minutes
Cook Time30 minutes
Total Time50 minutes
Category: Dinner
Yield: 4 burgers
Save This Recipe

Ingredients

  • 1.5 lbs Ground Beef (80/20 blend recommended)
  • 1 tbsp Worcestershire Sauce
  • 1 tsp Garlic Powder
  • 1 tsp Onion Powder
  • 1/2 tsp Smoked Paprika
  • 1/2 tsp Black Pepper, freshly ground
  • 1 tsp Salt, or to taste
  • 1/2 cup Mayonnaise
  • 2 tbsp Ketchup
  • 1 tbsp Yellow Mustard
  • 1 tbsp Sweet Pickle Relish
  • 1 tsp White Vinegar
  • 1/2 tsp Garlic Powder
  • 1/4 tsp Paprika
  • Pinch of Cayenne Pepper (optional)
  • 4 Brioche Buns, or your favorite burger buns
  • 8 slices American Cheese
  • 1 large White Onion, thinly sliced
  • Dill Pickle Chips, for serving
  • Lettuce (optional)
  • Tomato slices (optional)

Instructions

  1. Prepare the Sonic Sauce: In a medium bowl, combine mayonnaise, ketchup, yellow mustard, sweet pickle relish, white vinegar, garlic powder, paprika, and cayenne pepper (if using). Whisk until smooth. Taste and adjust seasonings. Cover and refrigerate for at least 30 minutes (or longer) to allow flavors to meld.
  2. Prepare the Smashed Patties: In a large bowl, gently combine ground beef, Worcestershire sauce, garlic powder, onion powder, smoked paprika, black pepper, and salt. Divide the meat mixture into 8 equal portions (about 3 ounces each). Form each portion into a loose ball.
  3. Smash and Cook the Patties: Place a large cast iron skillet or griddle over medium-high heat. Lightly grease the hot skillet. Place four meatballs onto the hot skillet, leaving space between them. Immediately place a piece of parchment paper over each meatball. Using a heavy-bottomed spatula or burger press, firmly press down on each meatball to smash it into a thin patty (about 1/4 inch thick). Remove the parchment paper and cook the patties for about 2-3 minutes per side, or until they are nicely browned and crispy around the edges. Flip the patties and cook for another 1-2 minutes. During the last minute of cooking, place a slice of American cheese on top of each patty and let it melt. Remove the patties from the skillet and set aside. Repeat the process with the remaining meatballs.
  4. Caramelize the Onions (Optional): Heat a tablespoon of olive oil or butter in a large skillet over medium-low heat. Add the thinly sliced white onions to the skillet. Cook the onions slowly, stirring occasionally, for about 30-45 minutes, or until they are deeply golden brown and caramelized. If the onions start to stick to the skillet, add a tablespoon of water or beef broth to deglaze the pan. Season the caramelized onions with a pinch of salt and pepper. Remove the onions from the skillet and set aside.
  5. Assemble the Burgers: Lightly toast the brioche buns. Spread a generous amount of Sonic Sauce on both the top and bottom buns. Place two smashed patties, each topped with melted American cheese, on the bottom bun. Top the patties with a layer of caramelized onions (if using). Add dill pickle chips to your liking. If desired, add lettuce and tomato slices. Place the top bun on top and gently press down to compress the burger slightly. Serve immediately and enjoy!

Notes

  • For best results, use 80/20 ground beef.
  • Don’t overmix the meat.
  • Make sure the skillet is screaming hot for crispy edges.
  • Smash the patties as thin as possible.
  • Caramelizing the onions is highly recommended for added flavor.
  • The Sonic Sauce can be made a day in advance.

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