Bring the taste of White Castle into your own kitchen with this easy Copycat White Castle Sliders recipe. Juicy beef patties, steamed over onions and tucked into soft rolls, deliver that iconic flavor all without the drive-thru line!
White Castle has been serving up its famous square sliders since 1921, and fans love them for their unmistakable oniony, beefy bite. The secret? Thin patties with vent holes that allow steam from the onions to cook them through that locks in both tenderness and flavor.
I've always had a soft spot for those little square burgers that somehow pack so much flavor into every bite! Since I can't always make a trip to grab the real deal, I decided to recreate them at home with this Copycat White Castle Sliders recipe. And you know, that I LOVE my copycat recipes just like my Copycat Starbucks Kale and Mushroom Egg Bites or my Copycat Applebee's Chicken Wonton Tacos, and many more!
These sliders have become one of my go-to party recipes because everyone loves how fun and nostalgic they are. This homemade version brings all that goodness into your oven. The onions get sweet and flavorful, the cheese melts perfectly, and the pickles add just the right crunch. They're easy to make, budget-friendly, and taste so close to the original that you'll want to whip up a batch every weekend!
🧾 Ingredients Needed
- ground beef
- water
- white onion, diced into small bits
- black pepper
- salt
- oil
- Worcestershire sauce
- slider rolls
- American cheese
- dill pickle chips
📌 Be sure to see the recipe card below for the full ingredients list with quantities and step-by-step instructions!
🔁 Variations
- Try sharp cheddar or pepper jack for a different taste twist.
- Want some extra flavor? Mix garlic powder or onion powder into the beef before flattening!
- Add ketchup, mustard, or even a dab of mayo for a more classic burger experience!
🥣 How to Make
STEP ONE: Heat oil in a saucepan over medium heat. Add onion and sauté for 3 minutes. Add the water and Worcestershire sauce. Bring to a simmer and for 8 minutes. Remove from heat and set aside.
STEP TWO: Flatten the beef between 2 sheets of parchment paper into a rectangle evenly ¼" thick.
STEP THREE: Cut the beef into 12 patties and use a wooden spoon handle (or metal straw) perforate vent holes into each patty.
STEP FOUR: On a baking sheet, add the onions and juices, spreading them out across the entire sheet.
STEP FIVE: Place the patties on top of the onion and move baking sheet into the oven, covering with a larger baking sheet that's turned upside down. Bake for 10 minutes.
STEP SIX: While the burgers steam cook in the oven, cut the rolls in half to make buns.
STEP SEVEN: After baking, remove burgers from oven and carefully remove top baking sheet.
STEP EIGHT: Assemble the sliders with a bottom bun, then a burger patty, slices of cheese cut to fit the patties, and 2 pickles on top. Top with other half of bun.
⭐ Pro Tips ⭐
- Be sure to cut uniform patties so they cook evenly.
- Don't skip the vent holes! This step is key to steaming the beef just like White Castle.
- For softer buns, place assembled sliders back into the oven for 2-3 minutes to warm through.
More Easy Copycat Recipes
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📖 Recipe
Copycat White Castle Sliders
Ingredients
- 1 pound ground beef
- ½ cup water
- 1 medium white onion diced into small bits
- ½ teaspoon black pepper
- ½ teaspoon salt
- 1 teaspoon oil
- 1 teaspoons Worcestershire sauce
- 12 slider rolls
- 6 slices American cheese
- 24 dill pickle chips
Instructions
- Heat oil in saucepan over medium heat. Add onion and sauté for 3 minutes. Add the water and Worcestershire sauce. Bring to a simmer and for 8 minutes. Remove from heat and set aside.
- Flatten the beef between 2 sheets of parchment paper into a rectangle evenly ¼" thick.
- Cut the beef into 12 patties and use a wooden spoon handle (or metal straw) perforate vent holes into each patty.
- On a baking sheet, add the onions and juices, spreading them out across the entire sheet.
- Place the patties on top of the onion and move baking sheet into the oven, covering with a larger baking sheet that's turned upside down. Bake for 10 minutes.
- While the burgers steam cook in the oven, cut the rolls in half to make buns.
- After baking, remove burgers from oven and carefully remove top baking sheet.
- Assemble the sliders with a bottom bun, then a burger patty, slices of cheese cut to fit the patties, and 2 pickles on top. Top with other half of bun.
Notes
- Be sure to cut uniform patties so they cook evenly.
- Don't skip the vent holes! This step is key to steaming the beef just like White Castle.
- For softer buns, place assembled sliders back into the oven for 2-3 minutes to warm through.
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