Crispy Baked Sweet Potatoes

This Crispy Baked Sweet Potatoes recipe is the BEST roasted sweet potatoes ever. They are thinly sliced and baked to crispy and buttery goodness. So delicious!

Course Snack
Cuisine American
Keyword Crispy Baked Sweet Potatoes
Prep Time 30 minutes
Cook Time 1 hour
Total Time 1 hour 30 minutes
Servings 6 people
Calories 399 kcal


  • 4 lbs. sweet potatoes
  • 6 oz. unsalted butter, room temperature or melted (1 1/2 sticks)
  • 1 1/2 teaspoons Maldon sea salt flakes (preferred) or salt
  • 1/2 teaspoon freshly ground black pepper
  • 2 teaspoons chopped rosemary or oregano


  1. Preheat oven to 400F.

  2. Using a mandolin slicer, thinly slice the peeled potatoes. Pat dry the potatoes with paper towels. 

  3. Place the sliced sweet potatoes in a large bowl. Using your hands, toss with butter, salt, black pepper and chopped rosemary/oregano until fully coated.

  4. Carefully place the sweet potatoes upright, from left to right, in a small baking tray. Do not pack in the sweet potatoes too tightly, as this impacts the crispiness. 

  5. Bake for an hour, or until the sweet potatoes are cooked and turn crispy. Serve immediately. 

Recipe Notes

You may use 5 oz. of duck fat instead of butter.

Nutrition Facts
Crispy Baked Sweet Potatoes
Amount Per Serving (6 people)
Calories 399 Calories from Fat 207
% Daily Value*
Fat 23g35%
Saturated Fat 14g88%
Cholesterol 60mg20%
Sodium 750mg33%
Potassium 1025mg29%
Carbohydrates 60g20%
Fiber 9g38%
Sugar 12g13%
Protein 5g10%
Vitamin A 43610IU872%
Vitamin C 7.3mg9%
Calcium 98mg10%
Iron 1.8mg10%
* Percent Daily Values are based on a 2000 calorie diet.