French Onion Burgers
INGREDIENTS Onions 1 tablespoon extra-virgin olive oil 1 tablespoon butter 2 medium sweet onions, halved and thinly sliced 1 teaspoon balsamic vinegar 1/4 teaspoon dried thyme Dijonnaise 1/4 cup mayonnaise 2 tablespoons Dijon mustard 1 garlic clove, minced Burgers 1 1/2 pounds ground chuck 1 packet dry French onion soup mix 1 cup shredded gruyere … Read more