Classic Diner Burger

Special Sauce

• 2 oz yellow onions, in pieces
• 1 garlic clove
• 4 oz mayonnaise
• 1 oz ketchup
• ½ tbsp relish
• 1 pinch ground white pepper
• 1 tsp mustard
• ¼ tsp paprika

Patties

• 20 oz sirloin steak, in pieces (1 in.), partially frozen, divided
• salt, to taste
• ground black pepper, to taste
• 4 slices American cheese
• lettuce
• tomato slices
• pickles, sliced
• 4 hamburger buns with sesame seeds, toasted