The Best Burger Ever

3 Pounds Ground Beef
Sriracha Hot Chili Sauce
1 Egg
4 Tbs. Brown Sugar, Divided
1 tsp. Salt
½ tsp. Ground Pepper
1 Red Onion, Sliced
Crumbled Blue Cheese
Kaiser Rolls or Onion Buns
Real Mayo
Your Favorite Lettuce
2 Tbs. Butter, plus some
Place the ground beef into a medium mixing bowl. Add salt and pepper. Add a few dashes of Sriracha and Tbs. brown sugar. With your hands, mix the meat and seasoning well. Set aside. Next, for the onions, heat a medium skillet over low heat. Add in butter. Dump in the sliced red onions. Add the remaining brown sugar. Combine well. Allow the onions to caramelize over low heat for about twenty minutes, tossing occasionally. Meanwhile, make the spicy mayo by combining ¼ cup mayo into a small bowl and add a few drops of Sriracha. Stir together and test to taste.
Next, slice the Kaiser roll and spread each half with about ½ Tbs. butter. Place them face down on grill. Grill until lightly brown.
Form meat into patties and place on a grill. Grill over medium heat. Cook for about 3 minutes and then flip. Cook until cooked through. To put the burger together, spread each roll with spicy mayo. Add the burger and add a large helping of caramelized onion followed by a generous helping of crumbled blue cheese. Top with your favorite lettuce. I like to use spring mix.

This is a modified recipe from Pioneer Woman.