Combine sour cream, mayo, jalapeno juices, diced jalapenos, sugar, cumin, paprika, chili powder, garlic powder and onion salt in a blender and blend. Add cayenne to the sauce if you want a kick to your burgers.
Serve as a drizzle on your burger or on the side as a dip!
Combine beef, garlic powder, chili powder, jalapeno, salt and pepper in a bowl; mix until ingredients are integrated (but not too hard) and then form into 4 thin burger patties.
Heat one tablespoon of vegetable oil in a skillet and cook each patty to your preferred temperature. Pour out fat and oil when done.
Heat another tablespoon of vegetable oil in skillet. Reduce heat to medium-low. Lay a tortilla on the oil; add a generous pinch of cheese and lettuce on top. The tortilla should be face down for two minutes.
Lay a burger patty on the cheese and lettuce and then top with more cheese, pico de gallo and a drizzle of sauce. Top with tortilla and flip burger after the two minutes is over; remove burger from heat after the other side has cooked for two minutes.