FRENCH ONION SOUP BURGERS

French Onion Soup Burgers image

Provided by Chef Potpie (Laurel)

Categories Burgers

Time 1h15m

Number Of Ingredients 15

2 Tbsp olive oil
2 medium onions, thinly sliced
1/2 tsp salt
pinch red pepper flakes
1 Tbsp butter
1 lb ground beef
1/2 tsp salt
1/2 tsp black pepper
1/2 tsp garlic powder
1/2 tsp onion powder
1/2 tsp sugar
a few dash(es) worcestershire sauce
4 slice fontina cheese
4 toasted onion or roasted garlic ciabatta buns, sliced in half
8 slice gruyere cheese

Steps:

1. Heat olive oil over medium heat in large cast iron skillet. Add onions, salt and red pepper flakes and cook, stirring every 5 minutes or so, for about 15 minutes, until they begin to color.
2. Add the butter and continue to cook, stiriring occasionally, for another 15 minutes until onions are caramelized and sweet. Remove to a plate.
3. Mix together the seasoning ingredients, (salt, pepper, onion powder, garlic powder and sugar.)
4. Shape burger into 4 patties and season with seasoning mixture. Wipe out skillet, grease, and heat over medium heat. Place burgers in skillet and cook for a few minutes until half-way cooked, turn over and cook to your desired doneness.
5. When burgers are done, remove the pan from the heat, dash each burger with worcestershire, place a slice of fontina on top of each, and cover the skillet with a lid.
6. Meanwhile, turn oven broiler on high. On a baking sheet place buns cut side up and place a slice of gruyere on each piece. Place under broiler until cheese bubbles up and browns.
7. Remove from boiler, add the burgers and caramelized onions and serve.