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White Castle Sliders you can make at home! If you have always wanted to replicate these signature burgers from the White Castle restaurant, this recipe is the real deal.
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This White Castle sliders copycat recipe makes flavorful, juicy, perfect little cheeseburgers everyone loves! Even my picky teenager loves these and requests them often, which is saying a LOT. Don’t be fooled by the fact that they are small and hand-held. These sliders pack a mighty punch to your hunger, and are satisfyingly filling! These are perfect to make for a crowd, and can be enjoyed by many! See below the recipe for helpful tips and more.
Secret Ingredients in White Castle Sliders
- Lipton onion soup mix – This comes in a two-pack in a box. It seasons the meat with a nice, savory onion flavor. You will only be using the dry mixture, so no need to make up the packet.
- Peanut butter – Yes, peanut butter! Just a tablespoon, and trust me on this! If you are really against using the peanut butter, you can just leave it out, but it holds the meat together nicely.
- Onion – Yellow onion that is finely chopped. You will scatter the onions over the top of the ground beef and bottom buns during the baking process.
Assembling Your Sliders
- Mix – Mix the ground beef, Lipton onion soup mix, peanut butter, and milk in a large bowl.
- Flatten – Spread the mixture on a baking sheet lined with parchment paper. Use a rolling pin to roll over the meat to smooth it out over the bottom of the baking sheet. Bake at 350 degrees for about 10 minutes.
- Bake – Take the pan out of the oven, sprinkle the diced onions all around the edges, then bake for 15 more minutes.
- Layer – Remove from the oven, spoon the onions from the edges all over the top of the meat, and layer with cheese slices. Bake another 7 to 10 minutes or until cheese has melted.
- Slice – Slice the cooked patties with a pizza cutter. Place the patties between the slider buns.
- Serve – Add any condiments, pickles, or extras that you like over the patties, slap on the top buns, and enjoy!
Toppings for White Castle Sliders
- Condiments – You can’t go wrong with the classics – ketchup, mustard, and mayonnaise.
- Pickles – I prefer the dill pickle slices best, but you can try bread and butter or lime pickles for various flavors. If you are a pickle fan, then go crazy with the pickles. For us, we like to use about 20 to 24 dill pickles on our sliders.
- Cheese – Choose your favorite cheese! American cheese will give you that signature flavor, but you can use cheddar, Swiss cheese, pepper jack, or Colby jack. Any cheese is good cheese when it is melty cheese!
- Meat – Add on a slice of ham or cooked bacon strips for a thicker, more hearty slider.
- Garlic powder – Sprinkle garlic powder on the burgers for some extra flavor.
- Topping – Brush a little melted butter on top of the buns and add sesame seeds for a fun appearance and extra texture!
Rave Reviews
“This was so good! Tasted just like White Castle. Can’t wait to make these for family gatherings!”
-Hannah Johnson
Frequently Asked Questions
Yes, of course you can, but I suggest giving them a try. Even if you don’t like onions, they add a wonderful flavor and texture that just can’t be duplicated.
I know it sounds weird, but the peanut butter adds a terrific texture and depth of flavor that is difficult to substitute. If you have a nut allergy or just can’t do the peanut butter, feel free to leave it out.
Yes! These work great and still have the classic onion flavor that helps provide the White Castle taste!
Storing Leftover Sliders
Make these ahead of time or learn to freeze them the proper way! Store them for a quick snack the next day or freeze them for a later time. These white castle sliders are an easy weeknight dinner that everyone enjoys!
- Making ahead – Prepare the sliders ahead of time and store them in the fridge until ready to reheat.
- Storing – Place the cooled white castle cheeseburger sliders in an airtight container in the refrigerator for three to four days.
- Freezing – Wrap the extra sliders in plastic wrap, then place in a freezer-safe bag for up to a month. Just make sure to thaw the burgers out completely in the refrigerator before microwaving so they cook evenly.
- Reheating – These little sliders make the best leftovers! Take them out of the fridge and pop them in the microwave for about 30-40 seconds and they taste just as fresh as the night before!
What to Serve with Sliders
- French Fries – Try our french fries from scratch or frozen fries in the air fryer!
- Onion Rings
- Coleslaw
- Side Salad
- Sweet Potato Fries
- Chips
- Fruit Salad
- Corn on the Cob
- Soup – Try our tomato soup or a hearty chili, for a tasty combo.
- Macaroni and Cheese
- Baked Beans
White Castle Sliders
Ingredients
- 2 pounds ground beef
- 1 (2-ounce) packet Lipton soup mix
- 1 tablespoon peanut butter
- ½ cup milk
- 1 onion, finely chopped
- 12 cheese slices Kraft or Velveeta cheese slices work great too
- 12 slider rolls I found mine in the bakery section of the grocery store. You may be able to fit more on depending on the size of the buns.
Instructions
- Heat oven to 350 degrees F. Set aside a baking sheet.
- In a large bowl, mix together the ground beef. Lipton onion soup mix, peanut butter, and milk.
- Spread the meat mixture on the baking sheet. Use a rolling pin to roll over the meat to smooth it out. Bake for about 10 minutes. The meat will shrink. Put the diced onion all around the edges and bake 15 minutes.
- Remove from the oven, spoon the onions from the edges all over the top of the meat, and layer with cheese slices. Bake another 7 to 10 minutes or until cheese has melted.
- Add the tops of the rolls (the bottom part of the rolls will just sit on the counter.) Bake for about 5 more minutes.
- Remove from oven. Slice the meat into individual sliders with a pizza cutter. Pick up the slider meat and its top bun with a spatula and set it on the bottom bun.
Video
Notes
- I found my slider rolls in the bakery section of the grocery store. You may be able to fit more or fewer buns on the meat, depending on the size of the buns.
- Once you have your cheese sliders baked and cut, you can top them with all kinds of toppings ketchup, mustard, mayonnaise, or other condiments; dill pickle slices (you’ll probably want 20-24 dill pickle chips for these, especially if you’re a fan of dill pickle); lime pickles; garlic powder; and a pinch of salt.
Nutrition Information
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Growing up in the South we had Krystal. I don’t know much about White Castle except from Bill & Ted. These were spot on for Krystal. I made a couple of modifications for authenticity. I kept the integrity of the top buns together to put on the meat-onion-cheese slab. I also kept the integrity of the bottom buns together and put a squirt of mustard and a couple of hamburger dill chips on each bottom bun. Then using two spatulas I put the meat-onion-cheese-bun slab on top of the bottom bun slab. Then used a pizza wheel to separate the individual burgers.
Also, since “packet” isn’t a measurement unit but “ounce” is, I went with 2 ounces of Lipton soup mix. It was perfect.
Thank you for your sharing how you made your sliders. I haven’t been to Krystal, but it sounds like they must be similar to White Castle. I’m so glad this recipe was a success for you! P.S. I’ll make the note of ounces in the recipe for future reference.:)
Thank you so much for sharing this! It came out so good! I used the Hawaiian Savory butter rolls for this. I put an offering of 1000 island out for this and I was told, “they are good on their own, we don’t need sauce” like WOW I did keep draining the fat from my 85/15 between each 10 minutes and each step. These are so good, thanks again!
I’m so happy this recipe was a success for you! Thank you for your comment!
Wow! A solid 5 STARS from my husband and I. I will make this again and again. I was a little nervous at first, but everything went just like it should. I did top with a little butter and everything bagel seasoning when I finished the tops. Thank you for the perfect recipe!! So delicious.
Yum, sounds like a great addition!
Can the PB be omitted?
Yes, but the meat will taste a little different. You should be fine leaving it out.
How much milk?
All of the amounts are in the recipe card at the bottom of the post. This recipe calls for 1/2 cup of milk. Hope this helps!
The absolute best recipe for make at home Whitey’s! Better than the “real” thing. If you don’t like’em, I’ll take your leftovers! 😀
Thank you, Willie!
Since baking sheets come in a variety of sizes, what size would you recommend for rolling out the hamburger mixture?
We used the standard 13×18 jelly roll pan for this recipe. Hope this helps!
Be careful there’s a step missing from step 4 of the recipe as compared to the other instructions. (The onions need to be placed on top of the meat, add cheese.) Otherwise really yummy!
Thanks for catching that missing step! Somehow it got deleted! It is fixed now so we are all good. Thanks again for the head’s up!
I made the following modification to the recipe. After you cook the meat for the first 10 minutes; Step-1. It should be removed from the oven and the diced onions should be placed around the edges of the meat. Step-2. It should then be returned to the oven for an additional 10 minutes until the onions are cooked (Note: to make them less oily the onions could be simmered in water until tender, drained, and then used. Just remember to add an additional 5 minutes of cooking time to the meat the first time it is cooked). Step-3. The meat should be removed from the oven and the onions spooned into 12 small piles evenly spaced on the top. The cheese is then placed on top of the meat to completely cover it and the onions. It should then be returned to the oven and heated until the cheese melts, about 5 minutes. Step-4. Remove it from the oven and place the top half of the slider buns spaced evenly on top and return them to the oven for about 3 to 5 minutes to toast the buns. Step-5. Remove from the oven and cut the meat between the buns and place the sections on the saved bottom halves of the slider buns. Serve and enjoy. (Note: I recommend using a lean mix of hamburger)
Great tips!
Thank you for sharing this information for cooking 😇
I can’t wait to make these and surprise my husband with them. He LOVES the old fashioned Royal Castle burgers which are the same as the White Castle burgers.
I have another dumb question lol.. your recipe calls for 1 two oz packet of Lipton Onion Soup mix. However, the box says there is a total of 2 oz in the box, and 2 envelopes in there. So should I be using both envelopes for a total of two oz, or just one envelope? Is there maybe a different box that has one oz envelopes? I’ve used just 1 packet and it tastes fine, so it may be just a trivial thing.
If you look at it it is confusing. Just use one package of the Lipton Onion soup mix, not both. I love cheese but I do not like a cheeseburger so I won’t be omitting the cheese from my recipe and see how they turn out