These White Castle Sliders are a homemade copycat of the famous fast-food sandwich. While they may not be an exact replica, they’re an easy, flavorful version that’s perfect for parties or a quick family meal.
WHITE CASTLE SLIDERS RECIPE
These sliders are a simple, satisfying take on the iconic White Castle sandwich. The version here focuses on straightforward ingredients and easy assembly so you can prepare a large batch for gatherings or make them ahead for busy nights. The patties in this recipe are formed from seasoned ground beef mixed with a melted cheese and onion soup mix, then baked briefly on rolls so each slider is warm, cheesy, and ready to eat in under an hour.
One of the conveniences of this recipe is that you can prep the filling ahead of time. I often brown the beef and onions the night before, then finish the cheese and soup mix in the morning. When you’re ready to serve, arrange the rolls, spoon on the mixture, top with the buns, wrap in foil, and bake for 15–20 minutes. The sliders come out toasty and easy to transport if you’re taking them to a party.
Traditional White Castle burgers often feature raw or lightly steamed onions placed on top of the patty, but for broad appeal I brown the onions with the meat so the flavor is mellow and integrated. A dill pickle slice on each slider is essential — it brightens the rich, cheesy meat and gives the slider its classic tang.
Depending on the size of the rolls you use, this recipe can yield anywhere from about 24 to 40 sliders. Mini Hawaiian rolls or small slider buns work very well if you want smaller, bite-sized sandwiches; larger rolls will reduce the total count but make more substantial sliders per serving. Wrapping the whole pan in foil helps keep the tops from overbrowning and keeps the sandwiches warm until serving. Individually wrapping each slider is also an option if you want to hand them out easily at an event.
OTHER SANDWICH RECIPES
- Ham and Cheese Sliders
- Mississippi Pot Roast Sandwiches
- Jalapeño Cheese Sliders
- Slow Cooker Chicken Caesar Sandwiches
- Cuban Sliders
- Chicken Parmesan Meatball Sliders
- Chicken Suiza Sammies
White Castle Sliders
Christy Denney
A copycat take on the famous White Castle slider: seasoned beef with cheese and onion soup mix, baked on slider rolls and finished with a dill pickle.
Prep Time: 10 mins | Cook Time: 25 mins | Total Time: 35 mins
Servings: about 40 rolls (varies by roll size)
Ingredients
- 1 pound ground beef
- 1 small onion, chopped fine
- 8 ounces Velveeta cheese, cubed
- ½ (1 1/4 ounce) package onion soup mix (see notes)
- Slider rolls, sliced in half (24–40 depending on size)
- Dill pickle slices (one per sandwich)
Instructions
- Preheat the oven to 350°F (175°C).
- In a skillet, brown the ground beef with the chopped onion until the meat is cooked through and the onion is soft. Drain excess fat.
- Return the drained meat and onions to low heat. Stir in the cubed Velveeta and the onion soup mix, cooking gently until the cheese melts and the mixture is well combined.
- Place the bottom halves of the slider rolls on a baking sheet lined with parchment paper. Spread the warm beef and cheese mixture evenly over the bottoms; using a small scoop (such as a cupcake scoop) makes this quick and uniform.
- Replace the top halves of the rolls, then cover the entire pan with foil or wrap each slider individually to keep the tops from browning too much.
- Bake at 350°F for 15–20 minutes, until the rolls are warmed through and toasty.
- Remove the foil and top each slider with a dill pickle slice. Serve immediately with ketchup and mustard if desired.
Notes
Each package of onion soup mix typically contains two 0.5 ounce packets; this recipe uses only one. Yield depends on the size of rolls chosen — smaller rolls will produce closer to 40 sliders, larger rolls fewer. These sliders are easy to prepare ahead and reheat well wrapped in foil.
Source: Adapted from a family recipe commonly shared online.
