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High-Protein Crispy Sweet Potato Fries | Air Fryer Healthy Sides

Indulge in guilt-free, high-protein sweet potato fries with a light, crispy texture. Perfect for fitness-focused meals or family dinners, this air fryer recipe combines vitamin-A-rich sweet potatoes with a protein-powder coating for a satisfying, crunchy snack.
Print Recipe
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings: 4 servings
Course: Appetizers & Snacks
Cuisine: American
Calories: 145
Ingredients Method Notes

Ingredients
  

  • 1 large sweet potato (about 450g)
  • 2 tablespoons unflavored whey protein isolate or egg white powder
  • 1 tablespoon cornstarch or arrowroot powder
  • 2 tablespoons avocado oil
  • 1 teaspoon nutritional yeast
  • Salt and pepper to taste

Method
 

  1. Wash and dry the sweet potato, then slice into 1/4-inch sticks.
  2. Toss the fries in a bowl with 1 tablespoon avocado oil, salt, and pepper.
  3. In a separate bowl, mix whey protein isolate (or egg white powder) with cornstarch (or arrowroot powder).
  4. Coat the fries evenly with the protein-cornstarch mixture, shaking off excess.
  5. Preheat air fryer to 200°C (400°F).
  6. Arrange fries in a single layer in the air fryer basket and cook for 12-15 minutes, flipping halfway.
  7. After cooking, toss with remaining 1 tablespoon avocado oil and nutritional yeast for extra crunch and flavor.

Notes

For a plant-based version, use egg white powder instead of whey protein.
Substitute arrowroot powder for cornstarch if avoiding gluten.
Adjust cooking time for air fryer model: start at 12 minutes if unsure.
Store leftovers in an airtight container at room temperature for up to 2 days.