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This Healthy Apple Cake is made with oats, Greek yogurt and an egg. Moist and full of apple cinnamon flavors, you won’t guess it’s oil-free, refined sugar-free and flourless. It comes together in a blender in just 5 minutes!

Closeup of moist slice of high protein apple cake made with Greek yogurt
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If you’re a fan of apples, you should also try my apple oatmeal bars, air fryer baked apples, and invisible apple cake.

Who’s excited for Fall? From Halloween to Thanksgiving, there so many celebrations lined up. But in reality, what excites me the moist is food! I love the season of anything pumpkin spice and apple cinnamon.

With temperatures lowering and leaves starting to fall, yesterday I was in the mood for a high protein apple cake. In my kitchen I also had Greek yogurt, eggs, and oats…In minutes, this deliciousness was baked!

Why you will love this recipe

  • High in protein – It has eggs and Greek yogurt as a replacement for oil and butter!
  • Healthy and low calorie – This is a flourless apple cake with no oil, no butter and no refined sugar. Plus, it’s high in fiber from the oats.
  • Super easy to make – Just blend all ingredients into a smooth batter and bake for 25 minutes.
  • Full of delicious autumnal flavors – It’s as moist and indulgent as the original, with all the warm spices of Fall.

Ingredients and substitutes

Here’s a list of all the ingredients you need, along with notes and replacements. You can find the precise amounts in the recipe card at the bottom.

Healthy apple cake ingredients
  • Apple – For a sweet flavor, I recommend using sweet apples like Fuji, Honeycrisp, or Gala. You can also replace an apple with ½ cup 3 tbsp (150 g) of unsweetened applesauce.
  • Egg  You’ll need a large egg, both white and yolk. For a vegan healthy apple cake, swap it for a flaxseed egg.
  • Greek yogurt – It adds richness, moisture and protein. I recommend minimum 2% fat Greek yogurt, but also full fat works. As a replacement you can use cottage cheese or dairy-free options like soy or coconut yogurt.
  • Rolled oats – When blended, it becomes flour and adds structure to the cake. While oat flour and almond flour are great substitutes, don’t use quick oats. They easily get mushy.
  • Maple syrup – It adds natural sweetness without refined sugars. Honey, agave and date syrup are also great.
  • Spices and flavors – The combination of ground cinnamon with vanilla extract provides this Greek yogurt apple cake all the delicious flavors of autumn.
  • Baking powder – It helps the cake rise and get moist.

Dietary adaptations

  • Higher in protein – Swap ⅓ cup (30 g) of oats for protein powder, adjusting with a splash of milk if needed. I recommend vanilla plant protein and casein.
  • Vegan – Replace the egg with a flaxseed egg and use plant based yogurt alternatives.
  • Gluten-free – Use certified gluten-free rolled oats.
  • Dairy-free – Instead of Greek yogurt, choose nondairy yogurts like Greek-style soy or coconut yogurt.
  • Low carb – Replace rolled oats with the same quantity of almond flour, or with a combination of almond flour and protein powder.

How to make healthy apple cake

Step 1 – Prep. Preheat the oven to 350°F (180°C) and line a 5 inches (12 cm) round baking mold with parchment paper or grease it with oil.

Step 2 – Blend. Cut the apple into chunks, then add to a high speed blender with egg, Greek yogurt, rolled oats, maple syrup, ground cinnamon, vanilla extract, baking powder and a pinch of salt.

Adding Greek yogurt and egg to diced apple

Step 3 – Chill. Let the batter rest in the fridge for 10 minutes.

Step 4 – Bake. Transfer the mixture to your prepared baking mold, spreading it out evenly. Bake in the middle rack of the hot oven for 25-30 minutes, or until the cake has set and is cooked inside.

Step 5 – Let cool. Let cool for at least 10 minutes before slicing and serving.

Baked apple protein cake topped with apple slices

Watch the video recipe

Recipe tips

  • Choose sweet apples – Since this recipe is low sugar, using a naturally sweet apple variety will enhance the flavor and keep the texture moist. I recommend Fuji, Honeycrisp, or Gala.
  • Adjust sweetness to taste – For a sweeter flavor, add more maple syrup or honey. Blending in a couple of pitted Medjool dates is also great. Personally, I find that 2 tbsp of maple syrup plus an apple are enough.
  • Add mix-ins – For more flavor and texture, after blending stir in the batter chopped walnuts, diced almonds, dark chocolate chips or chunks, raisins, or cranberries.
  • Let the batter rest – Before baking, refrigerate the batter for 10 minutes. This helps the mixture thicken thanks to the oats soaking.

Storage directions

  • To store – Let the apple cake cool completely, then place it in an airtight for container and store at room temperature for up to 2 days or in the fridge for up to 4 days.
  • To freeze – For longer storage, freeze in an airtight container for up to 3 months. Before serving, let it thaw overnight in the fridge and then reheat in hot oven or in the microwave.
healthy apple cake with no sugar and no oil

Frequently asked questions

Can I add protein powder?

Yes, you can use protein powder as a replacement for ⅓ cup (30 g) of rolled oats. My favorite options are vanilla vegan protein and casein, whey may get dry.

Can I use applesauce?

Yes, you can replace the apple with ½ cup 3 tbsp (150 g) of unsweetened applesauce.

How can I serve this apple yogurt cake?

This healthy apple cake is perfect for breakfasts, snacks and desserts alike. For breakfast I suggest pairing it with a protein like Greek yogurt or a vanilla protein shake plus toppings of choice. As a snack or dessert, it tastes delicious with a drizzle of honey and and almond butter.

More healthy desserts for Fall

5 from 4 votes

Healthy Apple Cake

This Healthy Apple Cake is made with oats, Greek yogurt and an egg. Moist and full of apple cinnamon flavors, you won't guess it's oil-free, refined sugar-free and flourless. It comes together in a blender in just 5 minutes!
Prep Time: 5 minutes
Cook Time: 25 minutes
Resting Time: 10 minutes
Total Time: 40 minutes
Servings: 6 servings
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Equipment

Ingredients

  • 1 medium apple, about 5.3 oz (150 g)
  • 1 large egg
  • ½ cup (120 g) Greek yogurt, minimum 2% fat
  • 1 cup (100 g) rolled oats
  • 2 to 6 tbsp maple syrup, or honey, to taste
  • ¾ tsp ground cinnamon
  • ½ tsp vanilla extract
  • ¾ tsp baking powder, optional but recommended
  • a pinch of salt

Instructions 

  • Preheat the oven to 350°F (180°C) and line a 5 inches (12 cm) round baking mold with parchment paper or grease it with oil.
  • Wash, core, and optionally peel the apple. Cut it into chunks.
  • In a high speed blender, combined the diced apple with egg, Greek yogurt, rolled oats, maple syrup, ground cinnamon, vanilla extract, baking powder and a pinch of salt.
    Adding Greek yogurt and egg to diced apple
  • After blending, you can stir in additional ingredients like apple chunks or chopped walnuts.
  • Let the batter rest in the fridge for 10 minutes.
  • Transfer the mixture to your prepared baking mold, spreading it out evenly. If desired top with thin slices of apple.
    Baking dish with healthy apple cake batter before baking
  • Bake in the middle rack of the hot oven for 25-30 minutes, or until the cake has set and is cooked inside. To check for doneness, insert a toothpick into the center: it should come out clean with just a few crumbs.
    Healthy apple cake batter in round baking mold, ready for baking in hot oven
  • Let cool for at least 10 minutes before slicing and serving.
    Baked apple protein cake topped with apple slices

Notes

Storage Directions
  • To store – Let the apple cake cool completely, then place it in an airtight for container and store at room temperature for up to 2 days or in the fridge for up to 4 days.
  • To freeze – For longer storage, freeze in an airtight container for up to 3 months. Before serving, let it thaw overnight in the fridge and then reheat in hot oven or in the microwave.
Recipe Variations
  • No apple – Swap the apple for a medium banana or pear for a different flavor.
  • Vegan – Replace the egg with a flaxseed or chia egg.
  • High protein – Replace ⅓ cup (30 g) of  oats with protein powder, adjusting with a splash of milk if needed. I recommend vanilla flavor vegan protein and casein.
  • Add-ins – Stir in the batter chopped walnuts, diced almonds, chocolate chips, raisins, or chunks of apple.

Nutrition

Serving: 1 serving | Calories: 119.6kcal | Carbohydrates: 19.3g | Protein: 6.5g | Fat: 2.4g | Saturated Fat: 0.7g | Polyunsaturated Fat: 0.6g | Monounsaturated Fat: 0.6g | Trans Fat: 0.003g | Cholesterol: 32.2mg | Sodium: 75.5mg | Potassium: 114.2mg | Fiber: 2.3g | Sugar: 7.7g | Vitamin A: 71IU | Vitamin C: 1.2mg | Calcium: 76.7mg | Iron: 0.9mg
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About Matteo

I’m the certified nutrition coach and fitness chef behind this blog. My mission is to make eating healthy easy and satisfying – for anyone and for any diet! My philosophy is simple: real food, clean ingredients and plenty of protein to feel your best.

5 from 4 votes

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8 Comments

  1. 5 stars
    Another delicious recipe! Severed it still a little warm with greek yogurt and sugar free maple. It’s dense, in a good way! Feels filling even with a little piece.
    I got 4 serves, but that was more due to my baking tin size rather than the recipe.
    I had pecans to add as well and but forgot to mix them in. I’ll have to make it again 😏
    Next time going to try a mix of oat and keto flour.
    I wanted to share a photo but don’t think I can

    1. Hey Alex,
      thanks a lot for leaving your feedback! It makes me happy that you tried and liked this healthy apple cake. With Greek yogurt and maple syrup it is already delicious, and with pecans it must be a dream! Sadly for the picture, I would truly love to see your creation.
      Have a great day,
      Matteo

  2. 5 stars
    Excellent recipe! Now I’m going to try it as muffins with a tablespoon of apple spice and teaspoon of monk fruit

    1. Hey dear Eileen,
      thank you SO much for your comment. It truly makes me happy to hear that you appreciate my recipes. I will definitely keep on posting more and more, it’s my life mission 😉
      I wish you a great Sunday,
      Matteo