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White Castle Sliders Recipe: Easy Homemade Copycat Cheeseburgers

White Castle Sliders - featured image

This easy homemade White Castle Sliders recipe brings all the nostalgia and flavor of the classic fast-food cheeseburgers to your kitchen. With juicy beef, melty cheese, and a signature onion layer, these sliders are perfect for parties, family dinners, or a fun weeknight meal.

Ingredients

Scale
  • 1 pound ground beef (80/20 blend)
  • 1/4 cup whole milk
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 1/4 teaspoon garlic powder
  • 1 large yellow onion, finely minced (about 1 cup)
  • 1 tablespoon water
  • 10 slider buns (preferably Martin’s Potato Rolls or soft dinner rolls)
  • 10 slices American cheese
  • 10 dill pickle chips (optional)
  • Ketchup (optional)
  • Mustard (optional)

Instructions

  1. Mince the onion as fine as possible, almost to a paste. Spread evenly across a parchment-lined baking sheet. Sprinkle 1 tablespoon water over the onions.
  2. In a mixing bowl, gently combine ground beef, milk, salt, black pepper, and garlic powder until just mixed.
  3. Place the beef mixture between two sheets of parchment paper. Roll or press to about 1/4 inch thick, forming a rectangle that covers the onions evenly.
  4. Preheat oven to 400°F. Bake the beef and onion sheet for 15-18 minutes, until cooked through.
  5. Let cool for 2-3 minutes, then cut the beef into 10 even squares using a pizza cutter or sharp knife.
  6. Place each beef square on the bottom half of a slider bun. Top with a slice of American cheese and a dill pickle chip, if desired. Add the top bun.
  7. For extra softness, wrap sliders in foil and return to the warm oven for 2-3 minutes to steam.
  8. Serve immediately with ketchup and mustard on the side.

Notes

For gluten-free sliders, use gluten-free buns and check cheese/pickle labels. For dairy-free, use plant-based cheese and omit milk. Press beef very thin for authentic texture. Steaming assembled sliders in foil keeps buns soft and cheese melty. Patties can be made ahead and reheated. Onions are key for flavor—mince very fine or sauté first if you prefer them softer.

Nutrition

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