Air Fryer Protein Donuts (High-Protein, Ready in 20 Min)

I’ve made a lot of air fryer donuts on this site, but these protein donuts are the ones that stay in my weekly rotation. They’re the recipe I reach for when I want something that tastes like a treat but actually keeps me full past 10 a.m. Each one has about 6 grams of protein and only 81 calories, they bake up light and cakey in the air fryer, and the whole batch is done in under 20 minutes.

The first few times I tested these, I made every mistake so you don’t have to. I overmixed the batter and got hockey pucks. I used a chalky protein powder and the donuts tasted like it. Below is the version that finally worked, plus the exact tweaks that fixed each problem.

If you’re building a stash of high-protein snacks, you’ll also want my Air Fryer Greek Yogurt Donuts and, for the low-carb crowd, my Air Fryer Keto Cream Cheese Cookies.

Why You’ll Love These Protein Donuts

• Meal-prep friendly — they freeze beautifully, so I make a double batch on Sunday.
• Genuinely high in protein — a scoop of protein powder plus eggs and Greek-yogurt glaze pushes each donut to ~6g without protein-bar aftertaste.
• No deep frying — the air fryer gives you a tender cake-donut texture with almost no added oil.
• Fast — 10 minutes of mixing, 8–12 minutes to cook.
• Flexible — vanilla or chocolate powder, dairy or plant-based, glazed or dusted. I’ve listed swaps for every ingredient below.

Can You Make Protein Donuts in an Air Fryer?

Yes, and it’s honestly easier than baking them in the oven. The air fryer’s circulating heat cooks the donuts faster and gives the edges a light golden set while the middle stays moist. The one thing that matters most: you need a silicone donut mold or an air-fryer-safe donut pan. You can’t pipe this batter directly into the basket like you can with a firmer dough.

Ingredients You’ll Need

Here’s what goes in and, more importantly, why — so you can substitute with confidence.

• Protein powder: the backbone of the recipe. Vanilla or chocolate both work. See my note below on picking one that won’t turn gummy.
• Almond flour or oat flour: gives structure so the donuts aren’t dense. Almond flour keeps them lower-carb; oat flour makes them a touch fluffier.
• Baking powder: the lift. Protein powder is heavy, so don’t skip it.
• Salt: makes everything taste less “protein-y.”
• Cinnamon or nutmeg: warm flavor that hides any powder aftertaste.
• Eggs: moisture and structure. These are what keep the donuts from crumbling.
• Almond milk or skim milk: thins the batter to a pipeable consistency.
• Melted coconut oil or unsweetened applesauce: coconut oil for richness, applesauce for fewer calories. I’ve tested both; applesauce is my everyday pick.
• Vanilla extract: rounds out the flavor.
• Natural sweetener: stevia, monk fruit, honey, or maple syrup. Adjust to your powder’s existing sweetness.

For the glaze (optional):

• Toppings: chopped nuts, shredded coconut, or sugar-free chocolate chips.
• Greek yogurt or light cream cheese: a protein-packed glaze base instead of pure sugar.
• Flavoring: vanilla extract or cocoa powder.
• Sweetener to taste: 1–2 tbsp powdered monk fruit or erythritol for a sugar-free glaze.

How to Make Air Fryer Protein Donuts

Step 1; Preheat and grease. Set your air fryer to 350°F (175°C). Grease your silicone donut mold well — I use a light coating of coconut oil so they pop out clean.

Step 2: Mix the dry ingredients. In a medium bowl, whisk together the protein powder, flour, baking powder, salt, and any spices.

Step 3: Blend the wet ingredients. In a second bowl, whisk the eggs, milk, melted coconut oil (or applesauce), vanilla, and sweetener until smooth.

Step 4: Combine — gently. Pour the wet into the dry and stir just until you don’t see dry streaks. This is the step where I ruined my first batch: overmixing develops the batter and makes tough, rubbery donuts. Stop early.

Step 5: Fill the molds. Spoon or pipe the batter into the molds about ¾ full. A zip-top bag with the corner snipped makes this clean and even.

Step 6: Air fry. Cook at 350°F for 8–12 minutes, until a toothpick comes out clean. Start checking at 8 — protein donuts go from done to dry fast.

Step 7: Cool before removing. Let them sit 5 minutes, then gently demold. They firm up as they cool.

Step 8: Glaze and top. Stir together your glaze, then dip or spread once the donuts are fully cool so it doesn’t slide off. Add toppings immediately.

My Top Tips (Learned the Hard Way)

• Protein powder choice is everything. A quality whey or a well-formulated plant blend gives the best texture. Some cheap isolates turn gummy or bake up spongy — if your powder tastes chalky in a shake, it’ll taste chalky here.
• Don’t overmix. I’ll say it twice because it’s the #1 reason protein donuts come out tough.
• Start at 8 minutes. Every air fryer runs differently. Undercook slightly rather than over — dry donuts are the most common complaint and it’s almost always time.
• Grease generously. Silicone molds are forgiving, but a stuck donut tears in half every time.
• Cool completely before glazing. Warm donuts melt the yogurt glaze right off.
• Cook in batches. Don’t crowd the basket — the donuts need air flow to rise evenly.

Variations to Try

• Chocolate protein donuts — use chocolate powder and add 1 tbsp cocoa to the batter.
• Cinnamon “sugar” — skip the glaze, brush with a little melted butter and dust with cinnamon + monk fruit.
• Vegan — swap eggs for flax eggs and use plant-based protein and milk.
• Peanut butter glaze — thin 2 tbsp powdered peanut butter with almond milk.

How to Store Protein Donuts

• Counter: airtight container up to 2 days.
• Fridge: up to 1 week (glaze them the day you serve for best texture).
• Freezer: unglazed, up to 3 months. Thaw at room temp and glaze fresh.

Frequently Asked Questions

Can I use any type of protein powder? Yes — whey, casein, and plant-based all work. Just know that plant proteins absorb more liquid, so if the batter looks thick, add a splash more milk.

Can I swap the almond or oat flour for regular flour? You can, but it lowers the protein content and changes the texture. All-purpose will make them more like a traditional cake donut.

Why did my protein donuts come out dry? Almost always overcooking or overmixing. Pull them at 8 minutes if your air fryer runs hot, and stir the batter only until just combined.

Can I make these without a donut mold? A silicone mold or air-fryer donut pan really is necessary — this batter is too loose to hold a donut shape on its own.

Can I add mix-ins? Absolutely. Blueberries, chopped strawberries, or sugar-free chocolate chips all work. Fold them in at the very end.

Do I have to glaze them? No. They’re great with just a dusting of cinnamon or a sprinkle of protein powder if you want to keep it simple.

This is a lighter, high-protein treat — nutrition will shift based on the specific protein powder and sweetener you use.

More Air Fryer Donut Recipes

Air Fryer Apple Cider Donuts

Air Fryer Greek Yogurt Donuts

Air Fryer Biscuit Donuts

Air Fryer Powdered Sugar Donuts