Ultimate Homemade Big Mac Sliders (Saucy, Cheesy, Party-Ready) - My Home Made Recipe

Ingredients

• 1/2 cup (120 g) mayonnaise
• 3 tablespoons French dressing
• 2 tablespoons sweet pickle relish
• 2 tablespoons finely minced white onion
• 1 teaspoon distilled white vinegar
• 1/2 teaspoon granulated sugar
• 1/4 teaspoon onion powder
• 1/8 teaspoon paprika
• 12 potato slider buns or soft dinner rolls
• 3 tablespoons (42 g) unsalted butter, melted
• 1 tablespoon sesame seeds, optional
• 2 lb (900 g) 80/20 ground beef
• 3/4 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1/2 teaspoon dried oregano
• 16 slices American cheese, divided
• 2 cups shredded iceberg lettuce
• 24 dill pickle chips
• 1/4 cup finely minced white onion