Caramelized Onion Smash Burgers.
If you’re on the hunt for a burger that’s not only juicy but also bursting with flavor, then look no further than the Caramelized Onion Smash Burgers. These burgers are a true culinary delight, combining the rich sweetness of caramelized onions with perfectly seared beef. When you smash the patties onto the hot grill, you create those irresistible crispy edges that everyone loves. Topped with sharp cheddar cheese and a fresh herb mayo, these burgers are bound to become a household favorite. Let’s dive in and create a burger that’s sure to impress family and friends.
What Makes This Recipe Special
Caramelized Onion Smash Burgers are all about the layers of flavor. The slow-cooked onions create a sweet and savory base that contrasts beautifully with the juicy beef patty. The process of smashing the burger not only enhances the texture but also locks in the juices, making every bite incredibly satisfying. Pair that with a homemade herb mayonnaise, and you’ve got a burger that elevates the backyard barbecue to gourmet status.
What Goes Into Caramelized Onion Smash Burgers.
- 2 medium sweet onions, thinly sliced – These will be caramelized to add sweetness and depth of flavor.
- 4 tablespoons unsalted butter – For cooking the onions and adding richness.
- Pinch of salt – To enhance the flavors of the onions.
- 1 pound lean ground beef (93% lean) – The star of the show, providing that essential burger flavor.
- 1 teaspoon salt – To season the beef.
- 1/2 tablespoon canola or vegetable oil – For frying the burgers at high heat.
- 1 tablespoon unsalted butter – For added flavor when cooking the patties.
- 4 slices sharp cheddar cheese – Or your favorite cheese for that melty goodness.
- 4 St Pierre Brioche Burger Buns – Soft and slightly sweet, perfect for holding all the deliciousness.
- Leafy green lettuce – For a fresh crunch.
- 1 cup mayonnaise – The base for our herb mayo.
- 2 tablespoons chopped basil – For a fresh, aromatic kick.
- 2 tablespoons chopped parsley – To add brightness to the mayo.
- 1 tablespoon chopped rosemary – A fragrant herb that complements the beef beautifully.
- 2 garlic cloves, minced – Adding a punch of flavor to the mayo.
- Freshly cracked black pepper – To taste, enhancing all the flavors.
What You’ll Need (Gear)
- Large skillet or griddle – For cooking the onions and smashing the burgers.
- Spatula – Essential for smashing and flipping the burgers.
- Mixing bowl – For combining the ingredients for the herb mayo.
- Knife and cutting board – For slicing the onions and herbs.
- Meat thermometer (optional) – For checking the doneness of the burgers.
Caramelized Onion Smash Burgers. in Steps
Step 1: Caramelize the Onions
Start by heating 2 tablespoons of unsalted butter in a large skillet over medium heat. Add the thinly sliced onions and a pinch of salt. Cook, stirring occasionally, for about 20-25 minutes until the onions are golden brown and caramelized. If they start to stick, lower the heat slightly. Once done, set them aside.
Step 2: Prepare the Herb Mayo
In a mixing bowl, combine 1 cup mayonnaise with chopped basil, parsley, rosemary, and minced garlic. Mix well and season with freshly cracked black pepper to taste. This herb mayo will add a refreshing layer of flavor to your burgers.
Step 3: Shape the Beef
While the onions are caramelizing, take the pound of lean ground beef and gently form it into four equal portions without overworking the meat. This helps to keep the burgers juicy.
Step 4: Smash and Cook the Burgers
Heat the remaining canola or vegetable oil in the skillet over high heat. Add the beef portions to the skillet, spacing them out. Using a spatula, smash each portion down firmly to create a thin patty. Season with 1 teaspoon of salt. Cook for about 3-4 minutes until a crust forms, then flip the burgers.
Step 5: Add Cheese
After flipping the burgers, add a tablespoon of butter to the skillet and place a slice of cheddar cheese on each patty. Cover the skillet to allow the cheese to melt while the burgers finish cooking, about 2-3 minutes.
Step 6: Toast the Buns
While the burgers are cooking, slice the brioche buns and toast them in a separate pan or under the broiler until golden brown.
Step 7: Assemble the Burgers
Spread a generous amount of the herb mayo on the bottom half of each toasted bun. Layer on the leafy green lettuce, followed by the cheesy burger patty, and top it off with a generous scoop of caramelized onions. Finish with the top half of the bun.
Step 8: Serve and Enjoy!
Serve your Caramelized Onion Smash Burgers hot off the skillet with your favorite sides, such as crispy fries or a fresh salad. These burgers are sure to be a hit!
Ingredient Flex Options
- Swap the cheese for a dairy-free alternative if desired.
- Use different herbs in the mayo, such as dill or cilantro, for varied flavors.
- Try using different types of onions, like yellow or red, for a unique twist.
- Serve with avocado or tomato slices for added freshness.
Errors to Dodge
- Don’t skip the caramelizing process; it adds essential flavor!
- Be careful not to overwork the ground beef when forming patties; this can lead to tough burgers.
- Ensure your skillet is hot enough before smashing the burgers to achieve that perfect crust.
- Avoid cooking the burgers too long; they can dry out quickly. Aim for medium-rare to medium for the best juiciness.
Cooling, Storing & Rewarming
If you have leftovers, allow the burgers to cool completely before storing them in an airtight container in the refrigerator for up to 3 days. For reheating, place the burgers in a skillet over medium heat until warmed through, or use the microwave for a quicker option. If you’ve made extra caramelized onions, they can be stored in the fridge for up to a week and added to other dishes for extra flavor.
Your Top Questions
Can I make these burgers ahead of time?
Absolutely! You can prepare the caramelized onions and herb mayo in advance. Just store them separately in the fridge until you’re ready to cook the burgers.
What’s the best way to cook the perfect burger?
The key to a perfect burger is high heat and not flipping it too often. Let the patty cook undisturbed until a nice crust forms before flipping.
Can I freeze the patties?
Yes! Form the patties and place parchment paper between each one before sealing them in a freezer bag. They can be frozen for up to 3 months.
What sides go well with these burgers?
Caramelized Onion Smash Burgers pair wonderfully with crispy fries, coleslaw, or a fresh garden salad for a balanced meal.
Similar Recipes
- Bacon Cheeseburgers – A classic twist with crispy bacon.
- Mushroom Swiss Burgers – Earthy mushrooms and melty Swiss cheese.
- Spicy Black Bean Veggie Burgers – A flavorful vegetarian option.
- Loaded BBQ Burgers – Topped with BBQ sauce, onions, and pickles.
Let’s Eat
When it comes to the ultimate burger experience, Caramelized Onion Smash Burgers deliver on all fronts. The combination of juicy beef, sweet onions, and herbaceous mayo creates a symphony of flavors that is hard to resist. Whether you’re firing up the grill for a summer cookout or hosting a casual dinner at home, these burgers are sure to impress. So gather your ingredients, put on your apron, and get ready to savor each delicious bite of these Caramelized Onion Smash Burgers. Happy cooking!
Caramelized Onion Smash Burgers.
Ingredients
Equipment
Method
- Step 1: Caramelize the Onions - Heat 2 tablespoons of butter in a large skillet over medium heat. Add onions and salt, cooking for 20-25 minutes until golden brown.
- Step 2: Prepare the Herb Mayo - In a bowl, mix mayonnaise with basil, parsley, rosemary, and garlic. Season with black pepper to taste.
- Step 3: Shape the Beef - Form the ground beef into four equal portions without overworking the meat.
- Step 4: Smash and Cook the Burgers - Heat oil in the skillet over high heat. Smash each beef portion down to create a thin patty. Season with salt and cook for 3-4 minutes.
- Step 5: Add Cheese - After flipping, add butter and cheese to each patty. Cover to melt cheese for 2-3 minutes.
- Step 6: Toast the Buns - Slice buns and toast them until golden brown.
- Step 7: Assemble the Burgers - Spread herb mayo on the bottom bun, add lettuce, patty, caramelized onions, and the top bun.
- Step 8: Serve and Enjoy! - Serve hot with your favorite sides!
Notes
- Use a meat thermometer for perfect doneness.
- Try different cheese varieties for added flavor.
- Store leftovers in an airtight container for up to 3 days.
