Begin by slicing your firm onions thinly. In a large skillet, melt 2 tablespoons of butter over medium-low heat. Add the onions, stirring them frequently. Allow them to cook for about 30 minutes until they're softened and golden brown.

If they begin to stick, add a splash of water to keep them from burning.

While your onions are caramelizing, take your ground beef and gently shape it into patties, aiming for about 1-inch thickness. Avoid overworking the meat.

Create a small thumb indentation in the center of each patty.

Once the onions are beautifully caramelized, heat a large skillet or grill over medium-high heat. Place the patties on the hot surface and cook for about 4-5 minutes per side.

Avoid pressing them down with a spatula to retain all those delicious juices.

Place each cooked patty on a soft brioche bun. Top generously with your homemade caramelized onion jam.

If desired, add cheese and your favorite toppings before closing the buns.

Serve them hot alongside crispy fries or a fresh green salad.

Encourage everyone to dig in right away.