French Onion Patty Melt

Why Make This Recipe

French Onion Patty Melt brings together the comforting flavors of caramelized onions and juicy beef patties, all melted together with rich Gruyere cheese. This dish not only satisfies your cravings but also is an impressive way to serve a hearty meal. Perfect for lunch or dinner, it’s a classic comfort food that feels special and indulgent.

How to Make French Onion Patty Melt

Ingredients

  • 3 tablespoons butter
  • 3 yellow onions, sliced thin
  • 2 pounds ground beef
  • 1 tablespoon ketchup
  • ½ teaspoon garlic powder
  • 1 teaspoon salt
  • ½ teaspoon pepper
  • 2 cups Gruyere cheese, shredded
  • 12 slices Texas toast
  • 8 teaspoons mayonnaise
  • ⅓ cup mayonnaise
  • 1 tablespoon lemon juice
  • 1 teaspoon pepper
  • 1 tablespoon garlic, minced (about 3 cloves)
  • 1 teaspoon fresh parsley
  • 1 tablespoon ketchup

Directions

  1. In a medium skillet, melt butter over medium-low heat. Add the sliced onions and cook until they are caramelized, which should take about 15-20 minutes. Stir often and add water if needed to avoid burning. Once caramelized, remove from skillet and tent to keep warm.
  2. In a large bowl, mix together ground beef, garlic powder, salt, and pepper. Shape the mixture into 8 square patties, slightly larger than the bread and about ¼ inch thick.
  3. Clean the skillet and set the heat to medium-high. Cook the hamburger patties in batches (two at a time) for 1-2 minutes per side. Once cooked, remove the patties from the skillet and set aside.
  4. Toast 4 pieces of Texas toast and set them aside.
  5. In a small bowl, combine ⅓ cup mayonnaise, lemon juice, pepper, garlic, parsley, and ketchup to make the aioli spread.
  6. To assemble the sandwich, start with 4 slices of untoasted bread. Top each with a layer of cheese, a hamburger patty, caramelized onions, and then each piece of toast with aioli spread on both sides. Add more cheese and a second beef patty, more onions, and finish with a final slice of bread. Spread 1 teaspoon of mayonnaise on top.
  7. Clean the skillet again and set it to medium heat. Carefully add the sandwiches to the skillet mayo-side down. Place a weighted pan on top to press the sandwich firmly and cook until golden brown, about 3 minutes. Remove the weight, spread 1 teaspoon of mayonnaise on the top slice, and gently flip the sandwich. Cook for an additional 3 minutes or until golden brown. Serve warm.

How to Serve French Onion Patty Melt

Serve your French Onion Patty Melt with crispy fries or a fresh salad for a complete meal. A side of pickles can also enhance the flavors nicely.

How to Store French Onion Patty Melt

If you have leftovers, wrap each sandwich in foil or store them in an airtight container in the refrigerator. They should last for about 2-3 days. To reheat, place them in a skillet over medium heat or use an oven to ensure they come out hot and crispy.

Tips to Make French Onion Patty Melt

  • For best results, cook the onions slowly to achieve maximum sweetness and flavor.
  • Don’t overcrowd the skillet when cooking patties; this helps to get a nice sear.
  • Experiment with different cheeses like Swiss or cheddar if you prefer.

Variation

You can make a vegetarian version by replacing the beef patties with plant-based burger alternatives and using a vegan cheese. Also, try adding sautéed mushrooms for extra flavor!

FAQs

1. Can I make the caramelized onions ahead of time?
Yes, you can caramelize the onions in advance and store them in the fridge for up to a week.

2. Can I freeze the sandwiches?
Yes, you can freeze the assembled sandwiches before cooking. Wrap them tightly and store them in the freezer for up to 3 months.

3. What can I substitute for Gruyere cheese?
If you can’t find Gruyere cheese, Swiss cheese or a mixture of mozzarella and parmesan can work well too.

French Onion Patty Melt

A delicious blend of caramelized onions, juicy beef patties, and rich Gruyere cheese, all served on Texas toast. This comfort food classic is perfect for a hearty lunch or dinner.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Course Dinner, Lunch
Cuisine American
Servings 8 servings
Calories 600 kcal

Ingredients
  

For the Caramelized Onions

  • 3 tablespoons butter
  • 3 large yellow onions, sliced thin

For the Beef Patties

  • 2 pounds ground beef
  • 1 tablespoon ketchup
  • ½ teaspoon garlic powder
  • 1 teaspoon salt
  • ½ teaspoon pepper

For Assembly

  • 2 cups Gruyere cheese, shredded
  • 12 slices Texas toast
  • 8 teaspoons mayonnaise
  • cup mayonnaise
  • 1 tablespoon lemon juice
  • 1 teaspoon pepper
  • 1 tablespoon garlic, minced (about 3 cloves)
  • 1 teaspoon fresh parsley
  • 1 tablespoon ketchup

Instructions
 

Preparation

  • In a medium skillet, melt butter over medium-low heat.
  • Add the sliced onions and cook until they are caramelized, which should take about 15-20 minutes. Stir often and add water if needed to avoid burning. Once caramelized, remove from skillet and tent to keep warm.
  • In a large bowl, mix together ground beef, garlic powder, salt, and pepper. Shape the mixture into 8 square patties, slightly larger than the bread and about ¼ inch thick.

Cooking

  • Clean the skillet and set the heat to medium-high. Cook the hamburger patties in batches (two at a time) for 1-2 minutes per side. Once cooked, remove the patties from the skillet and set aside.
  • Toast 4 pieces of Texas toast and set them aside.

Making the Aioli

  • In a small bowl, combine ⅓ cup mayonnaise, lemon juice, pepper, garlic, parsley, and ketchup to make the aioli spread.

Assembly

  • To assemble the sandwich, start with 4 slices of untoasted bread. Top each with a layer of cheese, a hamburger patty, caramelized onions, and then each piece of toast with aioli spread on both sides. Add more cheese and a second beef patty, more onions, and finish with a final slice of bread. Spread 1 teaspoon of mayonnaise on top.
  • Clean the skillet again and set it to medium heat. Carefully add the sandwiches to the skillet mayo-side down. Place a weighted pan on top to press the sandwich firmly and cook until golden brown, about 3 minutes. Remove the weight, spread 1 teaspoon of mayonnaise on the top slice, and gently flip the sandwich. Cook for an additional 3 minutes or until golden brown.
  • Serve warm.

Notes

For best results, cook the onions slowly to achieve maximum sweetness and flavor. Don't overcrowd the skillet when cooking patties; this helps to get a nice sear. Experiment with different cheeses like Swiss or cheddar if you prefer.

Nutrition

Serving: 1gCalories: 600kcalCarbohydrates: 40gProtein: 30gFat: 35gSaturated Fat: 15gSodium: 800mgFiber: 2gSugar: 4g
Keyword Cheesy Sandwich, Comfort Food, French Onion, Grilled Sandwich, Patty Melt
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