We Tried the White Castle Impossible Slider. Here's Our Review. (2024)

The Impossible Burger's rise in popularity is a lifesaver for both vegetarians and those who are just trying to cut back on their meat intake and eat more plant-based foods. Now, there are a number of options beyond grilled cheese and French fries when you're on road trips or just in a pinch. One of the newest additions to the plant-based fast-food lineup is the White Castle Impossible Slider. I went out and tried it for myself.

Burger King's Impossible Whopper, for reference, has been getting such good reviews that most people can't distinguish between the plant-based version and the original Whopper. Overall, I've had mixed experiences with Impossible Burgers. Not all are great, but when done right they are a nice substitute.

When I heard White Castle had an Impossible Slider, I had high hopes. I enlisted the help of a friend to compare the quality and taste of the Impossible Slider to the regular slider. I ordered Impossible Sliders with and without cheddar cheese and a regular slider with cheddar cheese. The Impossible Sliders were not sitting under a heater, like the other sliders, so I was able to watch them make it fresh.

What is the Impossible Slider like?

We Tried the White Castle Impossible Slider. Here's Our Review. (1)

The Impossible Slider comes with or without smoked cheddar cheese and the fast-food joint's standard pickles and grilled onions. The plant-based sliders looked good, but they had a different appearance than the original versions. The Impossible Slider is also two to three times thicker than the meat version. The smell between the two was also different, but the biggest difference was the bite.

How does the White Castle Impossible Slider taste?

We Tried the White Castle Impossible Slider. Here's Our Review. (2)

I started with the Impossible Slider with cheese: The bun, pickles, grilled onions, and cheddar all had a pleasant taste. The patty was a different story. The texture was off: It was firm, but not chewy. I took several bites just to figure out what flavors I was tasting; it was hamburger-esque, but not a good replacement. The flavor was definitely underwhelming.

The plain Impossible Slider is considered vegan; however, it is prepared in the same area as meat products. Without cheese, this was even less appetizing. The pickle and onions still helped give the slider some flavor, but the cheddar cheese really helped masked the inadequacy of the Impossible patty taste. This slider may have been acceptable when there were no other Impossible Burger options elsewhere, but if you know how good an Impossible Whopper can be, you likely won't be satisfied.

The easy way to make healthier comfort foods.

Final verdict

We Tried the White Castle Impossible Slider. Here's Our Review. (3)

White Castle did not create the Impossible Slider to mimic the taste of its original slider, but the difference in tastiness was surprising. My friend and taste taster who eats meat also compared the original and the Impossible Slider. She said that while she would eat the original slider on occasion, the Impossible Slider is nothing she would ever try again. She also said the original had a tangy sauce, which wasn't on the Impossible Sliders we tried. But it may have helped them along.

Overall, I am certain I will never have the desire to eat a White Castle Impossible Slider again, unless they pull a Domino's and completely change the recipe. The only thing I regret not getting at White Castle was a Barq's Root Beer to rinse the taste of the Impossible Slider from my mouth.

Rebecca Rovenstine

Rebecca Rovenstine is a freelance food and lifestyle writer.Read more about Rebecca

We Tried the White Castle Impossible Slider. Here's Our Review. (2024)

FAQs

What comes on the Impossible slider at White Castle? ›

The Impossible Slider is served with pickles and onions on White Castle's signature bun and can be customized to customers' desires, with or without cheddar cheese. This hot and tasty signature sandwich sizzles, tastes and smells like meat, but is made from plants.

Does White Castle cook Impossible sliders on a separate grill? ›

While we prepare the Impossible™ Slider on a separate griddle, preparing the slider in a restaurant with other beef offerings can't guarantee that the slider is 100% vegan.

What kind of meat does White Castle use for their sliders? ›

THE ORIGINAL SLIDER®

We invented the slider when we first took 100% beef and put it on top of grilled onions and a signature bun. Easy to heat, these satisfying Sliders are big in taste and in fun. Top them with dill pickles for a true White Castle experience.

What is different about the 1921 slider at White Castle? ›

Q: How is the 1921 Slider different than The Original Slider®? A: The 1921 Slider is made to order with seared and seasoned beef, and topped with savory grilled onions, smoked cheddar and pickles on a signature White Castle bun. Lettuce and tomato are available at select Castle locations.

What is White Castle meat made of? ›

White Castle starts with a stack of 100% beef ("We call that a beef log," said Richardson) that then goes through the Meat Horn, which puts the holes in the log. The patties are then sliced and sent out to White Castles across the nation ready to be steamed.

How much is the White Castle impossible burger? ›

The meatless burgers, which sell for $1.99, are about twice the size of White Castle's regular sliders. The patties, made primarily of wheat protein and potato, are the first plant-based burgers sold in an American quick-serve restaurant.

Should I thaw impossible burger before grilling? ›

CAN I COOK IMPOSSIBLE BURGERS FROM FROZEN? If you purchase a frozen package of Impossible Burger patties, you can cook the patties from frozen or after thawing -- they're great either way! Impossible meat performs best when cooked cold - you get a better sear and can build and enhance all its juicy, meaty flavor.

Do Impossible Burgers grill well? ›

Hand forming Impossible™ Beef Made From Plants into burger patties, or opting for pre-shaped Impossible™ Burger Patties Made From Plants is up to you–both are delicious options that provide all the grilled burger deliciousness you're looking for.

Why do White Castle burgers taste different? ›

There are holes in the meat patties

Burger flipper Earl Howell theorized that doing so would help speed up production and help the booming stores meet the burger demand. Plus, doing so enhances the onion flavor on the steamed-grilled patties.

Why don't frozen White Castle burgers have pickles? ›

But it was soon discovered that pickles don't freeze well, because the water evaporates, then, when the burger is microwaved, the pickle becomes tough and practically inedible. So, White Castle conducted a pickle study.

Why are there holes in White Castle burgers? ›

White Castle steams their burgers on a grill, so the holes allow steam to better penetrate the stacks of patties, which usually 30 patties tall, and piled onto the grill at once. Since no burgers need flipping, they end up coming out of the kitchen that bit quicker.

How much did a White Castle hamburger cost in 1921? ›

Founded on September 13, 1921, in Wichita, Kansas, it has been generally credited as the world's first fast-food hamburger chain. It is known for its small, square hamburgers referred to as "sliders". The burgers were initially priced at five cents until 1929 and remained at 10 cents until 1949.

What are the nicknames for the White Castle Sliders? ›

9. Fans know the sliders by many names. Including roach burgers, belly busters, gut bombs, whitey one-bites, and even mighty whitey one-biteys. Considering these are all longer than the word "slider", we're not confident the White Castle cult knows what a nickname is.

Why is White Castle called Sliders? ›

The name "slider" is believed to have been first used to describe the onion-steamed small burgers at White Castle restaurants. The term has since been picked up by other restaurants, usually to describe a small hamburger, but sometimes used to describe any small sandwich made with a slider bun.

What are the ingredients in the impossible burger? ›

Full Ingredient List: Water, Textured Wheat Protein, Coconut Oil, Potato Protein, Natural Flavors, 2% or less of: Leghemoglobin (Soy), Yeast Extract, Salt, Konjac Gum, Xanthan Gum, Soy Protein Isolate, Vitamin E, Vitamin C, Thiamin (Vitamin B1), Zinc, Niacin, Vitamin B6, Riboflavin (Vitamin B2), Vitamin B12.

What comes on a White Castle cheeseburger slider? ›

Some people say The Original Slider ® is perfect and can't be topped. To those people, we say "how about a slice of tasty, melty American Cheese?" The classic combo of 100% beef and grilled onions on our signature bun was already craveable.

How to make impossible burger sliders? ›

Cook Impossible Sliders

Divide one package of Impossible Beef into 6 slider patties, approximately the size of the slider buns. Over medium-high heat, sear your sliders in a pan or on the grill to desired temperature (approximately 1-2 minutes per side). Season with salt and pepper as desired.

How many calories in a White Castle Impossible slider? ›

New Plant-Based Recipe. $1.99. 11g Protein. 240 Calories.

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