High-Protein Pumpkin Spice Donuts (Air-Fryer Recipe)

This formulation utilizes the hygroscopic properties of pumpkin purée and coconut flour to create a moist, cake-like crumb without the use of high-fat butter or refined oils. The structural matrix is established through the thermal coagulation of egg proteins and whey-casein blends, which provide the necessary lift and air-pocket formation during rapid air-fryer convection. By using the air-fryer’s high-velocity hot air, we trigger the Maillard reaction on the surface, creating a delicate crust that mimics the texture of a traditional fried donut while maintaining a high protein-to-carbohydrate ratio and lower caloric density.

Recipe Details

• Prep Time: 10 Min
• Cook Time: 8 Min
• Total Time: 18 Min
• Yield: 4 Donuts
• Calories: 145 kcal per donut

Ingredients:

The Pumpkin Batter

• 1/2 cup (120g) 100% Pure Pumpkin Purée (not pumpkin pie filling)
• 1 Large Egg
• 1/4 cup Non-fat Greek Yogurt
• 31g (1 Scoop) Vanilla Whey/Casein Protein Powder
• 2 tbsp (14g) Coconut Flour
• 1/2 tsp Baking Powder

Spice & Sweetener

• 1 tsp Pumpkin Pie Spice (Cinnamon, Nutmeg, Ginger, Cloves)
• 1 tbsp Zero-calorie Granulated Sweetener
• 1/2 tsp Vanilla Extract

The Coating

• 1 tbsp Zero-calorie Cinnamon-Sugar blend
• Optional: Light spray of coconut oil

Preparation Steps:

1. Batter Homogenization

1. In a medium bowl, whisk together the pumpkin purée, egg, Greek yogurt, and vanilla extract until the mixture is a smooth, vibrant orange liquid.
2. Add the protein powder, coconut flour, baking powder, pumpkin spice, and sweetener.
3. Stir with a spatula until fully integrated. Let the batter rest for 3 minutes; this allows the coconut flour to hydrate and thicken the batter to a pipeable consistency.

2. Geometric Shaping

1. Preheat your air-fryer to 175°C (350°F).
2. Grease a silicone donut mold that fits your air-fryer basket. If you do not have a mold, you can use a piping bag to form circles on a piece of perforated parchment paper.
3. Fill the molds or pipe the batter evenly into four 3-inch donut shapes.

3. Convection Baking & Finishing

1. Place the molds in the air-fryer basket and cook for 7–9 minutes. The donuts are done when they have risen and the tops are springy to the touch.
2. Remove and let cool in the mold for 5 minutes. This cooling phase is essential for the protein chains to set, preventing the donuts from breaking.
3. Lightly spray the warm donuts with coconut oil and toss in the cinnamon-sugar blend for the final textural finish.

Expert Tips:

• Moisture Balance: If the batter seems too liquid, add 1 extra teaspoon of coconut flour. Pumpkin purée moisture content can vary, and a thicker batter ensures the donut holds its “O” shape during the bake.
• Protein Selection: A Whey-Casein blend is required for a “cakey” texture. Pure whey isolate can result in a rubbery donut that shrinks significantly after cooling.
• Air-Flow Optimization: Ensure you do not overcrowd the air-fryer basket. Proper convection airflow is necessary to cook the centers evenly without burning the exterior.