High Protein Donuts (No Protein Powder!) — Baked or Air Fryer

These high protein donuts are soft, lightly sweet, and made entirely with real ingredients — no protein powder and no refined sugar. Each one has about 11g of protein, thanks to Greek yogurt, oat flour, and almond flour instead of a scoop of powder. You can bake them in a donut pan or make them in the air fryer, and they come together in one bowl in a few minutes.

I developed this recipe for anyone who wants a donut that fits real goals without tasting like a protein bar. No chalky aftertaste, no eggs, no white sugar — just a tender, cakey donut you can feel good about. If you’ve ever bitten into a “protein donut” that tasted like a dry sponge, these are the opposite. They’re soft, lightly sweet, and made with everyday ingredients you already have — no protein powder and no weird aftertaste.

Quick Recipe Overview

• Prep time: 10 minutes
• Cook time: 12–14 minutes (oven) / 9–11 minutes (air fryer)
• Total time: ~25 minutes
• Servings: 6 donuts
• Calories: ~210 per donut (estimate)
• Protein: ~11g per donut
• Dietary: High protein · No refined sugar · Eggless · No protein powder · Vegetarian · Gluten-free option

Why You’ll Love This Recipe

• 11g protein per donut — from real food, not powder.
• Only real ingredients — nothing you can’t pronounce.
• No protein powder and no refined sugar (sweetened with monk fruit).
• Oven or air fryer — your choice, both work.
• Eggless and made in one bowl.
• Soft and cakey, not dry or rubbery like many protein bakes.
• Easy to meal-prep for the week.

Ingredients

Makes 6 donuts.

• Oat flour — 1⅓ cups (140 g). The main structure and a big part of the protein and fiber. Use certified gluten-free oat flour if you need the recipe gluten-free. You can blend rolled oats into a fine flour yourself.
• Almond flour — ⅔ cup (60 g). Adds tenderness, healthy fat, and protein. Contains nuts — see substitutions if you need nut-free.
• Granulated monk fruit sweetener — ⅓ cup (60 g). Sweetens with no refined sugar. Use a 1:1 granulated monk fruit blend for best texture.
• Baking powder — 1½ tsp and baking soda — ¼ tsp. The lift; eggless batter needs reliable leavening.
• Cinnamon — 1 tsp and salt — ¼ tsp. Flavor and balance.
• Thick Greek yogurt (0% or 2%) — 1¼ cups (280 g). The protein engine and the moisture. Keep it thick — strain it first if it’s watery, or the batter will run.
• Milk (dairy or soy) — ⅓ cup (80 ml). Loosens the batter to a pipeable consistency; soy milk keeps protein high.
• Ground flaxseed — 1 tbsp (+ 2½ tbsp water). Your egg replacer and binder.
• Vanilla extract — 1 tsp.
• Melted butter or neutral oil — 1 tbsp (optional). For extra tenderness; can be left out.

Equipment

• 6-cavity donut pan (or an air-fryer-safe silicone donut mold)
• Two mixing bowls, whisk
• Piping bag or zip-top bag

How to Make High Protein Donuts

These come together in one bowl and about 10 minutes of hands-on time. No mixer, no piping skills needed — if you can stir, you can make these.

1. Make the flax egg. Stir the ground flaxseed into 2½ tbsp water and let it sit 5 minutes until gel-like. This binds the batter so you don’t need eggs.
2. Preheat and grease. Heat the oven to 350°F (175°C), or the air fryer to 320°F (160°C). Grease the donut pan well.
3. Whisk the dry ingredients. In a bowl, whisk oat flour, almond flour, monk fruit, baking powder, baking soda, cinnamon, and salt until there are no lumps.
4. Whisk the wet ingredients. In another bowl, whisk the Greek yogurt, milk, flax egg, vanilla, and melted butter (if using) until smooth.
5. Combine. Fold the wet into the dry until just combined — don’t overmix. The batter should be thick but pipeable. If it’s stiff, add 1–2 tbsp more milk.
6. Pipe. Spoon the batter into a piping bag (or a zip-top bag with a corner snipped) and fill each cavity about ¾ full. Smooth the tops.
7. Bake or air-fry. Bake 12–14 minutes, or air-fry 9–11 minutes, until the tops spring back and a toothpick comes out clean. Ovens and air fryers vary — check at the early end.
8. Cool before releasing. Let them cool in the pan for 10 minutes, then turn out onto a rack. Releasing eggless donuts too early can tear them.
9. Glaze (optional). Dip the tops in melted sugar-free dark chocolate, or whisk 2 tbsp cocoa + 2 tbsp monk fruit + 1–2 tbsp milk into a quick glaze. Let set before serving.

Tips for the Best High Protein Donuts

• Keep the yogurt thick. This is the #1 fix for runny batter and dense donuts. Strain watery yogurt in a cloth for 15 minutes first.
• Don’t overmix. Overworking oat-flour batter makes gummy donuts. Fold just until no dry streaks remain.
• Fill ¾ full, not to the top, so the centers rise into a proper donut shape.
• Check early. Protein/yogurt bakes go from perfect to dry fast — pull them the moment a toothpick is clean.
• Cool fully before glazing or the glaze slides off.

Common Mistakes

• Donuts turned out dense → yogurt was too thin or batter was overmixed → strain the yogurt and fold gently.
• Batter too runny to pipe → thin yogurt or too much milk → start with thick yogurt and add milk 1 tbsp at a time.
• Dry donuts → overbaked → check at 12 min (oven) / 9 min (air fryer).
• Stuck to the pan / tore → released too soon or under-greased → grease well and wait the full 10-minute cool.

Substitutions

• Oat flour → all-purpose or 1:1 gluten-free flour (texture will be slightly less tender). Recommended only if you don’t need it gluten-free.
• Almond flour → for nut-free, replace with an equal weight of extra oat flour; donuts will be a touch less moist. Recommended.
• Greek yogurt → thick dairy-free yogurt works, but choose a high-protein one or protein per donut drops.
• Monk fruit → any 1:1 granulated sweetener; if you use regular sugar the “no refined sugar” claim no longer applies.
• Butter/oil → simply omit for lower fat; donuts are slightly less tender.

Variations of High Protein Donuts

• Chocolate protein donuts: replace 2 tbsp oat flour with unsweetened cocoa.
• Lemon: skip cinnamon, add 1 tbsp lemon zest.
• Cinnamon “sugar”: brush with a little melted butter and toss in monk fruit + cinnamon.
• Higher protein: use nonfat Greek yogurt and soy milk.

Storage

• Fridge: airtight, up to 3 days.
• Freezer: freeze un-glazed up to 1 month; thaw at room temperature.
• Glaze after thawing for the best look.

Make-Ahead / Meal Prep

Bake a batch, cool fully, and refrigerate for grab-and-go high-protein snacks through the week. Warm for 8–10 seconds before eating to bring back the soft texture.

Serving Suggestions for High Protein Donuts

Great with coffee for breakfast, as a post-workout snack, or glazed for a lighter dessert. Pair with extra Greek yogurt and berries for a higher-protein plate.

Nutrition Information (per donut, estimate)

Nutrient	Amount
Calories	~210
Protein	~11 g
Carbohydrates	~21 g
Total fat	~9 g
Saturated fat	~2.5 g
Fiber	~4.5 g
Sugar	~3 g (all natural, 0 g added/refined)
Sodium	~290 mg

Nutrition information is an estimate and may vary depending on the brands and ingredients used. Assumes 2% Greek yogurt, 2% milk, and the optional butter included; monk fruit contributes negligible calories.

Nutrition Value Explanation

The protein comes from Greek yogurt, oat flour, and almond flour — no protein powder. Fiber comes mainly from oat flour, almond flour, and flaxseed. There is no added or refined sugar; the small amount of sugar shown is natural (from yogurt and milk). These are a cakey baked donut, not a deep-fried one, so they’re lower in fat than traditional donuts.

FAQ of High Protein Donuts

How much protein is in each donut? About 11g per donut, from real ingredients — no protein powder.

Can I make these without protein powder? Yes — this recipe is designed with no protein powder at all.

Can I make them in an air fryer? Yes. Air-fry at 320°F (160°C) for 9–11 minutes in a donut-shaped silicone mold.

Are these donuts eggless? Yes. A flaxseed “egg” binds the batter, so no eggs are needed.

Are they gluten-free? They can be — use certified gluten-free oat flour. Almond flour is naturally gluten-free.

Can I make them nut-free? Yes — swap the almond flour for an equal weight of extra oat flour.

Why are my donuts dense? Usually the Greek yogurt was too thin, or the batter was overmixed. Strain the yogurt and fold gently.

Can I use regular sugar instead of monk fruit? Yes, but then they’re no longer refined-sugar-free.

How do I store them? Airtight in the fridge up to 3 days, or freeze un-glazed up to 1 month.

Can I double the recipe? Yes — it scales cleanly; bake in batches.

Final Thoughts

If you’ve been let down by dry, chalky protein donuts, these are the fix: soft, real-ingredient, 11g protein, and no protein powder in sight. Make a batch on Sunday and you’ve got a high-protein treat all week.

Tried these? Leave a star rating and a comment below — it genuinely helps other readers, and I read every one. And if you make a fun glaze flavor, tell me what you went with!