20g High Protein Oatmeal Cream Pie Air Fryer – A Lighter Take on a Classic Treat

If you love the nostalgic taste of an oatmeal cream pie but want something that actually supports your goals, this recipe is for you. These soft, chewy oatmeal cookies sandwich a fluffy, protein-packed filling, and the air fryer makes the process quick and consistent. Each pie delivers around 20 grams of protein without tasting like a “diet” dessert.

You’ll get that classic cinnamon-oat flavor, a tender bite, and a creamy center that doesn’t ooze or harden. It’s the kind of snack that works post-workout, for breakfast on the go, or as a smarter sweet at night.

Print Recipe

20g High Protein Oatmeal Cream Pie Air Fryer – A Lighter Take on a Classic Treat

Prep Time10 minutes mins

Cook Time15 minutes mins

Total Time25 minutes mins

Servings: 4

Ingredients

Dry ingredients for cookies:

• 1 cup 100 g quick oats or finely chopped rolled oats
• 1/2 cup 60 g oat flour or finely ground oats
• 1 scoop 30 g vanilla whey or whey-casein protein powder
• 1/3 cup 65 g light brown sugar, packed
• 2 tbsp granulated zero-calorie sweetener optional, for extra sweetness
• 1 tsp ground cinnamon
• 1/2 tsp baking soda
• 1/4 tsp fine salt

Wet ingredients for cookies:

• 2 tbsp unsalted butter or coconut oil melted
• 1/4 cup 60 ml unsweetened applesauce
• 1 large egg
• 1 tsp vanilla extract
• 1 –2 tbsp milk of choice as needed for dough consistency

Protein cream filling:

• 6 oz 170 g vanilla Greek yogurt (2% or nonfat)
• 2 tbsp light cream cheese softened
• 1 scoop 25–30 g vanilla whey or whey-casein protein powder
• 1 –2 tbsp powdered sugar or powdered sweetener to taste
• 1/2 tsp vanilla extract
• Pinch of salt

Optional add-ins:

• 1 –2 tbsp mini chocolate chips
• 1 –2 tbsp chopped pecans or walnuts
• Extra cinnamon or a pinch of nutmeg

Instructions

• Preheat your air fryer. Set to 320°F (160°C). Line the basket or tray with parchment that’s trimmed to fit and vented so air can circulate.
• Mix the dry ingredients. In a large bowl, whisk oats, oat flour, protein powder, brown sugar, sweetener, cinnamon, baking soda, and salt until evenly combined.
• Combine the wet ingredients. In a separate bowl, whisk melted butter, applesauce, egg, and vanilla.
• Stir wet into dry until a thick dough forms. If it looks crumbly, add milk 1 tablespoon at a time until sticky but scoopable.
• Rest the dough. Let it sit 5 minutes. This allows the oats to hydrate, which improves chew and prevents spreading.
• Portion the cookies. Use a tablespoon or small cookie scoop to form 16 equal mounds.
• Roll lightly and press into 2.5-inch disks about 1/3 inch thick. Keep them uniform so they cook evenly and pair up neatly.
• Air fry in batches. Arrange 6–8 cookies in the basket with space between. Air fry 5–7 minutes until set at the edges and soft in the center.
• They will firm as they cool. Avoid overcooking.
• Cool completely. Transfer to a rack. Let them cool 15–20 minutes so the filling won’t melt on contact.
• Make the filling. Beat yogurt and cream cheese until smooth.
• Add protein powder, powdered sugar, vanilla, and salt. Mix until fluffy. If too thick, add 1–2 teaspoons milk; if too loose, sift in a bit more protein powder.
• Chill 10 minutes to set.
• Assemble the pies. Pipe or spoon 1.5–2 tablespoons of cream on the flat side of a cookie. Top with a second cookie and press gently to spread the filling to the edges.
• Let them set. Chill assembled pies for 15–20 minutes for the best texture. This helps the cream hold and the cookies soften slightly, mimicking the classic.
• Confirm protein per pie. With the amounts listed, each pie typically lands around 20 g of protein depending on your protein powder brand.
• Use a nutrition calculator if you need exact macros.

Why This Recipe Works

• Air fryer efficiency: The circulating heat cooks the cookies evenly with a soft middle and gently crisp edges in minutes.
• Protein without chalkiness: Whey or a whey-casein blend mixes into the batter for a smooth texture and into the filling for a light, stable cream.
• Better carbs and fats: Rolled oats add fiber and a hearty chew, while a small amount of butter or coconut oil keeps the cookies tender.
• Balanced sweetness: A mix of brown sugar and a zero-calorie sweetener keeps flavor high and calories reasonable.
• Make-ahead friendly: Both cookies and filling hold well, so you can assemble when cravings hit.

Ingredients

• Dry ingredients for cookies:
  • 1 cup (100 g) quick oats or finely chopped rolled oats
  • 1/2 cup (60 g) oat flour or finely ground oats
  • 1 scoop (30 g) vanilla whey or whey-casein protein powder
  • 1/3 cup (65 g) light brown sugar, packed
  • 2 tbsp granulated zero-calorie sweetener (optional, for extra sweetness)
  • 1 tsp ground cinnamon
  • 1/2 tsp baking soda
  • 1/4 tsp fine salt
• Wet ingredients for cookies:
  • 2 tbsp unsalted butter or coconut oil, melted
  • 1/4 cup (60 ml) unsweetened applesauce
  • 1 large egg
  • 1 tsp vanilla extract
  • 1–2 tbsp milk of choice, as needed for dough consistency
• Protein cream filling:
  • 6 oz (170 g) vanilla Greek yogurt (2% or nonfat)
  • 2 tbsp light cream cheese, softened
  • 1 scoop (25–30 g) vanilla whey or whey-casein protein powder
  • 1–2 tbsp powdered sugar or powdered sweetener, to taste
  • 1/2 tsp vanilla extract
  • Pinch of salt
• Optional add-ins:
  • 1–2 tbsp mini chocolate chips
  • 1–2 tbsp chopped pecans or walnuts
  • Extra cinnamon or a pinch of nutmeg

Step-by-Step Instructions

1. Preheat your air fryer. Set to 320°F (160°C). Line the basket or tray with parchment that’s trimmed to fit and vented so air can circulate.
2. Mix the dry ingredients. In a large bowl, whisk oats, oat flour, protein powder, brown sugar, sweetener, cinnamon, baking soda, and salt until evenly combined.
3. Combine the wet ingredients. In a separate bowl, whisk melted butter, applesauce, egg, and vanilla.
   

   Stir wet into dry until a thick dough forms. If it looks crumbly, add milk 1 tablespoon at a time until sticky but scoopable.

4. Rest the dough. Let it sit 5 minutes. This allows the oats to hydrate, which improves chew and prevents spreading.
5. Portion the cookies. Use a tablespoon or small cookie scoop to form 16 equal mounds.
   

   Roll lightly and press into 2.5-inch disks about 1/3 inch thick. Keep them uniform so they cook evenly and pair up neatly.

6. Air fry in batches. Arrange 6–8 cookies in the basket with space between. Air fry 5–7 minutes until set at the edges and soft in the center.
   

   They will firm as they cool. Avoid overcooking.

7. Cool completely. Transfer to a rack. Let them cool 15–20 minutes so the filling won’t melt on contact.
8. Make the filling. Beat yogurt and cream cheese until smooth.
   

   Add protein powder, powdered sugar, vanilla, and salt. Mix until fluffy. If too thick, add 1–2 teaspoons milk; if too loose, sift in a bit more protein powder. Chill 10 minutes to set.

9. Assemble the pies. Pipe or spoon 1.5–2 tablespoons of cream on the flat side of a cookie. Top with a second cookie and press gently to spread the filling to the edges.
10. Let them set. Chill assembled pies for 15–20 minutes for the best texture. This helps the cream hold and the cookies soften slightly, mimicking the classic.
11. Confirm protein per pie. With the amounts listed, each pie typically lands around 20 g of protein depending on your protein powder brand.
    

    Use a nutrition calculator if you need exact macros.

How to Store

• Refrigerator: Keep assembled pies in an airtight container for 3–4 days. Place parchment between layers to prevent sticking.
• Freezer: Wrap each pie in plastic, then place in a freezer bag. Freeze up to 2 months.
  

  Thaw in the fridge for a few hours or at room temperature for 20–30 minutes.

• Make-ahead tip: Store cookies and filling separately if you prefer crisp edges. Assemble just before serving.

Health Benefits

• High-quality protein: Each pie offers around 20 g of protein to support muscle repair, satiety, and blood sugar stability.
• Fiber from oats: Oats provide beta-glucan fiber, which supports heart health and keeps you full longer.
• Reduced added sugar: A blend of brown sugar and sweetener cuts calories while keeping flavor intact.
• Smarter fats: A modest amount of butter or coconut oil keeps texture soft without going heavy on saturated fat.

What Not to Do

• Don’t overbake. Dry, hard cookies won’t meld with the filling. Pull them when the centers still look soft.
• Don’t skip the rest time. Hydrating the oats prevents crumbly cookies and helps them hold shape.
• Don’t overload the basket. Crowding blocks airflow and leads to uneven baking.
• Don’t use only casein or only plant protein in the cookies without adjustments. Pure casein or some plant powders can make them dense.
  

  If using plant protein, add 1–2 extra tablespoons milk.

• Don’t assemble while warm. Heat melts the filling and makes a mess.

Variations You Can Try

• Maple cinnamon: Swap vanilla extract for maple extract and add an extra 1/2 teaspoon cinnamon.
• Peanut butter twist: Replace 1 tablespoon butter with 1 tablespoon natural peanut butter in the dough; add peanut butter powder to the filling.
• Chocolate chip: Fold mini chocolate chips into the dough and use chocolate protein in the filling.
• Gluten-free: Use certified gluten-free oats and oat flour. Check protein powder labels for gluten status.
• Dairy-free: Use plant protein, dairy-free yogurt, and vegan cream cheese. Add a splash more milk to reach the right dough and filling texture.
• Spice it up: Add nutmeg, allspice, or pumpkin pie spice for a cozy fall vibe.

FAQ

Can I bake these in a regular oven?

Yes.

Bake at 350°F (175°C) for 8–10 minutes on a lined sheet. Pull when edges set and centers look soft. Cool fully before filling.

Which protein powder works best?

A whey or whey-casein blend gives the best tenderness in the cookies and fluffy texture in the cream.

If using plant protein, start with a smaller amount and add milk as needed to avoid a dry dough.

How do I make the filling thicker?

Chill it for 15–20 minutes, or blend in 1–2 teaspoons more protein powder. Powdered sugar or a small amount of instant pudding mix can also add body.

How big should I make the cookies?

Aim for 2.5-inch disks about 1/3 inch thick. Uniform size ensures even cooking and tidy sandwiches.

Can I cut the sugar entirely?

You can rely on sweetener only, but a small amount of brown sugar adds moisture, spread, and that caramel note.

If you remove it, add a teaspoon of molasses to keep flavor depth.

Why did my cookies turn out dry?

They were likely overcooked or the dough was too dry. Next time, add milk gradually until sticky, and pull the cookies while centers are still soft.

How can I hit exactly 20 g of protein per pie?

Use a protein powder with 24–25 g per 30 g scoop and keep the filling generous. If needed, add 5 g more protein powder to the filling and slightly more yogurt to keep it spreadable.

Do I need to chill the assembled pies?

Chilling for 15–20 minutes sets the filling and creates that classic, soft-sandwich texture.

It’s optional but recommended.

Can I make them nut-free?

Yes. Skip nut add-ins and choose a protein powder processed in a nut-free facility if needed. The base recipe contains no nuts by default.

In Conclusion

These 20g High Protein Oatmeal Cream Pie Air Fryer sandwiches deliver comfort food flavor with smart nutrition.

The cookies are tender and spiced, the filling is creamy and stable, and the air fryer keeps the process fast and consistent. Make a batch on Sunday, stash a few in the fridge or freezer, and you’ll have a satisfying, protein-rich treat ready whenever the sweet tooth hits. Simple ingredients, big payoff, and zero compromise on taste.