As an Amazon Associate I earn from qualifying purchases.

Are you trying to lose weight but can’t resist desserts? I’ve got your back. Clocking at 78 calories per slice, this Low Calorie Cake is the ultimate dessert for weight loss. So moist and delicious that you’ll never guess it’s healthy and low calorie.

low calorie cake recipe
Want to save this recipe?
Just enter your email and get it sent to your inbox! Plus you’ll get a free ebook and new recipes from us every week!

Say goodbye to dry and boring diet snacks that taste like cardboard. Out of all low-calorie dessert recipes, this chocolate cake is the winner. It is rich, moist, and comes with a skinny chocolate frosting and dark chocolate chips. For under 80 calories, toppings included!

The ingredients for low calorie cake

To make low calorie cake, you will need the following ingredients on hand:

  • Egg: Use a large fresh egg, or replace with a flaxseed egg if you follow a vegan diet.
  • Greek yogurt: This recipe works with any thick yogurt of your choice – dairy or nondairy. For more protein and fewer calories, I like nonfat Greek yogurt. 
  • Oat flour: Use homemade or store-bought oat flour, gluten-free if it is necessary. Feel free to replace with your favorite flour, such as all purpose flour, whole-wheat flour or spelt flour
  • Protein powder: For the moistest texture, I recommend vegan protein powder or casein, chocolate flavored. Replace protein powder with more flour.
  • Cocoa powder: For a sugar-free, low calorie dessert use unsweetened cocoa powder. 
  • Granulated sweetener: This recipe is sweetened with erythritol, a calorie-free and sugar-free alternative to sugar. You can replace with your favorite calorie-free granular sweetener (such as stevia or xylitol), coconut sugar or brown sugar.
  • Milk of choice: For the lowest calorie cake, use unsweetened almond milk or skimmed milk. Substitute with any milk you like, dairy or nondairy.
  • Baking powder: It is a non-negotiable ingredients, your cake won’t rise without.

Homemade skinny frosting

This low calorie dessert comes with a skinny chocolate frosting and crushed cookies on top. The good thing is, you can make your own frosting at home. It’s pretty basic and only requires 3 common ingredients:

  • Unsweetened cocoa powder
  • Granulated sweetener
  • Milk of choice

For a real sweet treat, this cake also comes with chocolate chips on top. I went for sugar-free chocolate chips, but you can pick any you have on hand. And don’t worry, some chocolate won’t crush your diet. They will satisfy your cravings while still staying within your macros. As I told you before, this weight loss cake has just 78 calories per slice, toppings (and chocolate) included!

low calorie chocolate cake

Cake without protein powder

For a more macro-friendly dessert, this recipe uses oat flour in combination with protein powder. But no worry, this does not mean you must use protein powder. If you want to make low calorie cake without protein powder, replace it with more flour. There are however two things to keep in mind:

  • You may need more sweetener. As this recipe uses chocolate flavored protein powder, my low calorie cake only needed 3 tablespoons of sweetener. If you substitute with more flour, your dessert may need up to 6 tablespoons of granular sweetener. 
  • You may need less milk. Protein powder and flour have different compositions and therefore behave differently in baking. As a rule of thumb, flours absorb less liquid than casein or vegan protein powder.

Keto low calorie cake

If you follow a low carb diet, here is a simple way to adapt this recipe to your needs. For keto low calorie cake, replace the oat flour with almond flour and adjust with more flour or less milk to consistency. This is because almond flour absorbs liquids less than oat flour.

Make it dairy-free and vegan

Making dairy-free cake for weight loss is very simple. All you should do is swapping out Greek yogurt for a plant based alternative of your choice. My recommendation is to choose a yogurt that has a thick texture comparable to Greek yogurt.

And if you want to make it completely vegan, replace the egg with one flaxseed egg. Some people have told me that also 3 tablespoons of unsweetened applesauce work, but I haven’t tried it yet.

How to make low calorie cake

Step 1: Make the batter. In a large mixing bowl, beat the egg together with the low-fat Greek yogurt and the granulated sweetener until smooth. Add the oat flour, the protein powder (or more flour), the cocoa powder and the baking powder. Start mixing, gradually adding the milk until you get a smooth cake batter. This depends on the protein powder used, if any.

Step 2: Bake. Transfer the batter to a prepared loaf pan and bake in hot oven for 25 to 35 minutes. Let cool before serving.

Step 3: Make the low-calorie frosting and top. In a small bowl, stir together cocoa powder with the sweetener of choice and milk to consistency. You’ll need about 2 to 3 tbsp, or until you get a smooth cream. Once it has cooled, top the low calorie cake with chocolate frosting and optionally some chocolate chips.

Storage instructions

Before storing, let your low calorie cake cool completely. I suggest taking it out of the oven, placing it over a baking rack or plate and letting it rest at room temperature. Once it has cooled, you can transfer into a food container and refrigerate for a maximum of 3 days.

For a longer storage, seal in airtight zipping bags and freeze. Frozen, this low calorie dessert will last for up to 3 months. When it is time to reheat, remove from the freezer and pop in hot oven until warm. Or microwave for about 30 seconds.

Recipe tips

  • Use casein or vegan protein powder with flavor. Avoid whey, as it makes baked goods dry. Also, I suggest making this recipe with a flavored protein powder, my favorites are chocolate or vanilla flavors.
  • Add more sweetener, if necessary. If you use unflavored protein powder or just flour, the low calorie dessert will require more sweetener.
  • Use almond or skimmed milk. Unsweetened almond milk and skimmed milk contain the lowest amount of calories. Perfect for making diet cake!
  • Add milk gradually. When mixing the batter, start with little milk and add as much as you need to get a smooth consistency.
  • Store in the fridge. As this recipe uses Greek yogurt, it stores best in the fridge. And if already frosted, the icing will feel like ice cream on top of your cake.

FAQ – Recipe for low calorie cake

Why is my low calorie cake dry?

If your cake comes out dry, chances are that you are using whey protein. Whey protein powder dries out when heated and therefore it is not recommended for this recipe. Replace with another protein powder or more flour next time.

What protein powder is good for baking?

Casein and vegan protein powders are the best options. Differently from whey, they do not dry out when heated and therefore make a moister dessert.
You can still use whey, but the texture of your cake won’t be as moist.

How much sweetener should I add?

The amount of granulated sweetener that this recipe requires depends on whether you use flavored protein powder or not.
As I used chocolate flavored protein, my low calorie cake only needed 3 tablespoons of sweetener. If using unflavored protein powder or just flour, your cake may need up to 6 tbsp of sweetener. Adjust the sweetness to your preferences.

How much milk should I add?

The quantity of milk depends on the type of protein powder you use, if any. Casein and vegan protein powder will require more milk (about 120 ml or 1/2 cup) than whey or normal flour (about 60 ml or 1/4 cup). Start with little and add as much milk as you need to get a smooth batter.

How to replace protein powder?

You can replace protein powder with oat flour, almond flour or any flour of your choice. But keep in mind that the nutritional values will differ.

Can I cook chocolate cake in the microwave?

Unfortunately this low calorie dessert cannot be cooked microwave. The microwave is only good for reheating leftovers.

low calorie cake for diet and weight loss

More low calorie dessert recipes

5 from 10 votes

Low Calorie Cake

Are you trying to lose weight but can't resist desserts? I've got your back. Clocking at 78 calories per slice, this Low Calorie Cake is the ultimate dessert for weight loss. So moist and delicious that you'll never guess it's healthy and low calorie.
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes
Servings: 9 slices
Save this Recipe
Enter your email and get it sent to your inbox!

Ingredients

  • 1 egg
  • 120 grams (½ cup) Greek yogurt, nonfat
  • 50 grams (½ cup) oat flour, or preferred flour
  • 30 grams (⅓ cup) protein powder, or more flour, see notes*
  • 20 grams (¼ cup) cocoa powder, unsweetened
  • 30 to 60 grams (3 to 6 tbsp) granulated sweetener, calorie-free, (to taste, see notes*)
  • 3/4 tsp baking powder
  • 60 to 120 ml (¼ to ½ cup) milk of choice, see notes*

Low Calorie Frosting

  • 2 tbsp cocoa powder, unsweetened
  • granulated sweetener, to taste, about 1 tbsp
  • 2 to 3 tbsp milk of choice

Instructions 

  • Preheat oven to 175ºC (350°F) and fold 15 cm (6 inches) loaf pan with parchment paper or grease with oil.
  • In a large mixing bowl, beat the egg together with Greek yogurt and granulated sweetener until smooth.
  • Add oat flour, protein powder (or more flour), cocoa powder and baking powder.
  • Start mixing, gradually adding the milk until you get a smooth cake batter – the amount of milk depends on the protein powder used, if any (see notes*).
  • Transfer the batter to the prepared loaf pan and bake in hot oven for 25 to 35 minutes. Let cool before serving.

Low Calorie Frosting

  • In a small bowl, stir together cocoa powder with sweetener and milk to consistency (around 2 to 3 tbsp, you should get a smooth cream). 
  • Once it has cooled, top low calorie cake with the chocolate frosting and optionally some chocolate chips.

Notes

  • For a more balanced dessert, this low calorie cake recipe has protein powder (not required). I used chocolate flavored casein protein powder, but you can replace with vegan protein powder, a mix of whey and casein or whey (not recommended). Or use more flour, if you don’t have protein powder.
  • The amount of granulated sweetener that this recipe requires depends on whether you use flavored protein powder or not. As I used chocolate flavored protein, my low calorie cake only needed 3 tbsp of sweetener. If you use unflavored protein powder or replace with more flour, your cake may need up to 6 tbsp of sweetener. Adjust to your likings.
  • The quantity of milk depends on the type of protein powder you use, if any. Casein and vegan protein powder require more milk (about 120 ml or 1/2 cup) than whey or normal flour (about 60 ml or 1/4 cup). Start with little and add as much milk as needed to get a smooth batter.

Nutrition

Serving: 1slice | Calories: 77.8kcal | Carbohydrates: 10.7g | Protein: 6.5g | Fat: 2g | Saturated Fat: 0.5g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 0.4g | Trans Fat: 0.003g | Cholesterol: 24.4mg | Sodium: 21mg | Potassium: 95.7mg | Fiber: 2g | Sugar: 3.6g | Vitamin A: 62IU | Vitamin C: 0.5mg | Calcium: 42mg | Iron: 1.1mg
Like this recipe? Rate and comment below!

About Matteo

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

You May Also Like

5 from 10 votes (8 ratings without comment)

Leave a comment

Your email address will not be published. Required fields are marked *

Recipe Rating





4 Comments

  1. 5 stars
    I think I will be a huge fan of your recipes. I just discovered this website and I’m planning to try some of it tomorrow. Thank you for sharing ?

    1. Hey dear Edyta!

      Thank you very much for your comment, I am so glad you discovered my blog and appreciate my recipes?. Let me know what you think about them then!

      Have a great evening.
      All the best,
      Matteo?