Start by heating a large skillet over low heat. Add butter and sliced onions along with brown sugar. Sauté slowly for 25-30 minutes until caramelized.

While onions caramelize, mix ground beef with Worcestershire sauce, garlic powder, onion powder, smoked paprika, salt, and black pepper. Form into patties.

In a medium bowl, combine mayonnaise, sour cream, minced garlic, and lemon juice. Stir in cooled caramelized onions.

Wash and chop lettuce, dice tomatoes and cucumber, and thinly slice red onion. Store separately.

Heat olive oil in the skillet, cook burger patties for 8-10 minutes until browned and desired doneness.

Assemble bowls with lettuce, patties, arrange vegetables, drizzle aioli, sprinkle cheese, and add pickle slices and chives.