In a large skillet over medium high heat add butter and bring to a sizzle. Add in sliced onions and stir to coat with butter. Stir in 1/4 cup of water. Place lid on and cook for 5-7 minutes until onions are "caramelized" browned and softened. Turn off heat and set aside.NOTE: remove lid every few minutes to stir onions and make sure water content is fine. Do not burn your onions.
In a medium bowl mix together ground beef and lipton onion soup mixes. Divide mixture into 6 equal portions. I use a 1/2 cup measuring tool for even burgers.
Heat griddle or large skillet to a medium high heat. Place 1/2 cup measured burgers onto heated griddle. Take a piece of parchment and place on top of burger. Smash down thinly. Cook burgers for 4-5 minutes until golden brown on bottom and flip burgers over.
Cook burgers an additional 4 minutes. Place a mound of cooked onions on top of burger. Top onions with 2 pieces of provolone cheese. Cook burgers an additional 2 minutes until cheese has melted partially and burgers are cooked to your temperature.
These are best served on toasted buns. Place bun tops & bottoms onto a sheet pan and place in 350 degree preheated oven until just toasted. Butter them before placing in oven if you desire.
