15-Hour Potatoes

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They're ultra-crispy on the outside and perfectly fluffy inside.

viral 15 hour potato
Photo:

Rachel Marek. Prop Styling: Addelyn Evans

Prep Time:
25 mins
Bake Time:
3 hrs
Chill Time:
12 hrs
Fry Time:
12 mins
Total Time:
15 hrs 37 mins
Servings:
32
Yield:
32 pieces

We've tried several TikTok-famous recipes in our Test Kitchen, and many of them have been fantastic. Remember Dirty Martini Pasta and Chippy Boys? But this potato recipe may take the top spot as our favorite viral recipe. TikTok creator @poppycooks first introduced use to the recipe, which has been on restaurant menus for years. Our take on 15-Hour Potatoes are cooked low and slow in beef tallow before being fried until golden brown. Serve them with our spicy horseradish dip, or try topping the potato cubes with creme fraiche and caviar.

What Are 15-Hour Potatoes?

15-Hour Potatoes are made with thin layers of sliced russet potatoes that are slowly cooked in beef tallow. Once out of the oven, the potatoes are chilled overnight before being sliced into cubes and fried. The finished potato recipe is crispy and golden on the outside and tender and fluffy on the inside.

How to Serve 15-Hour Potatoes

Our 15-hour potato recipe is best served warm with a sprinkle of flaky sea salt. We like to make a homemade horseradish cream sauce for dipping, but the potatoes are good with mayo, ketchup, garlic aioli, or your favorite fry dip.

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Ingredients

  • 3 pounds russet potatoes, peeled

  • 3 tablespoons cider vinegar

  • 1/2 cup beef tallow or rendered duck fat, melted

  • 2 teaspoons kosher salt, plus more for serving

  • Peanut oil, for frying

Horseradish Sour Cream

  • 1/2 cup sour cream

  • 1 tablespoon prepared horseradish

  • 1 teaspoon snipped fresh chives

Directions

  1. Prep the Pan

    Line a 9x5-inch loaf pan with parchment paper, allowing edges to extend beyond the sides of the pan.

  2. Slice Potatoes

    Peel and slice the potatoes lengthwise using a mandoline, to 1/16-inch. Place in a extra-large bowl; cover potatoes with water. Add the cider vinegar. Gently stir and let stand for 30 minutes. Drain well and pat very dry. Preheat oven to 250°F.

  3. Add Beef Tallow

    Return potato to the same bowl. Add beef tallow, and salt. Gently toss to coat.

  4. Layer Potatoes

    Arrange slices layer by layer, filling gaps in the previous layers as you go. Cut a piece of parchment to fit over the top of the potato layers.

  5. Bake

    Bake 3 hours or until fork tender.

  6. Chill Overnight

    Remove top parchment paper, cover potatoes with plastic wrap. Place a second loaf pan of the same size on top of the potatoes. Weight with several cans of food. Chill in the refrigerator 12 hours.

  7. Cut

    Remove weights. Lift potatoes form pan using the edges of the parchment. Cut the stack of potatoes into 32, 1-inch pieces.

  8. Fry and Serve

    In a deep, heavy saucepan, heat 1 1/2-inch of oil to 375°F. Fry 6 to 8 potato pieces at a time until golden brown and crisp, 3 to 4 minutes. Sprinkle with additional salt. Serve with Horseradish Sour Cream.

How to Make Horseradish Sour Cream

  1. Mix Ingredients

    In a small bowl, whisk together sour cream, horseradish, and chives.

Nutrition Facts (per serving)

82 Calories
4g Fat
9g Carbs
1g Protein
Nutrition Facts
Servings Per Recipe 32
Calories 81.5
% Daily Value *
Total Fat 4.4g 6%
Saturated Fat 2g 10%
Cholesterol 5.6mg 2%
Sodium 87.8mg 4%
Total Carbohydrate 9.4g 3%
Dietary Fiber 1g 4%
Total Sugars 0.6g
Protein 1.2g 2%
Vitamin D 0mcg 0%
Vitamin C 3.7mg 4%
Calcium 11.7mg 1%
Iron 0.5mg 3%
Potassium 240.7mg 5%
Fatty acids, total trans 0g
Vitamin D 0.9IU
Alanine 0g
Arginine 0.1g
Ash 0.8g
Aspartic acid 0.3g
Caffeine 0mg
Carotene, alpha 0mcg
Choline, total 9.7mg
Copper, Cu 0mg
Cystine 0g
Energy 342.1kJ
Fluoride, F 19.2mcg
Folate, total 11.6mcg
Glutamic acid 0.2g
Glycine 0g
Histidine 0g
Isoleucine 0g
Leucine 0.1g
Lysine 0.1g
Methionine 0g
Magnesium, Mg 13.3mg
Manganese, Mn 0.1mg
Niacin 0.6mg
Phosphorus, P 33.2mg
Pantothenic acid 0.2mg
Phenylalanine 0g
Phytosterols 0.9mg
Proline 0g
Retinol 4.3mcg
Selenium, Se 0.4mcg
Serine 0g
Starch 7.4g
Theobromine 0mg
Threonine 0g
Vitamin E (alpha-tocopherol) 0.2mg
Tryptophan 0g
Tyrosine 0g
Valine 0.1g
Vitamin A, IU 21.7IU
Vitamin A, RAE 4.9mcg
Vitamin B-12 0mcg
Vitamin B-6 0.2mg
Vitamin K (phylloquinone) 1mcg
Water 36g
Zinc, Zn 0.2mg

*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

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