Low Carb Microwave Peanut Butter Cake

5 from 2 votes

10 Cals: 321 Protein: 11 Carbs: 15 Fat: 29

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This flourless low carb cake takes only around 10 minutes to make. Most importantly, all you need for it is just a microwave and a combination of ingredients.

low carb peanut butter cake
No matter how long you’ve been on a low carb diet, you still need dessert. And sometimes, blueberries just don’t cut it.

But, what do you do when your local bakery only sells desserts that are loaded with sugar? Make your own low carb cake.

This low carb cake ticks all the boxes. It’ll satisfy your sweet tooth and it takes only 10 minutes to make! And to make it, you don’t even need an oven. Just your trusty microwave.

slice of cake

Ingredients You’ll Need

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How to Make Low Carb Microwave Peanut Butter Cake

Step 1. Melt butter and peanut butter in the microwave.

Step 2. Mix almond flour, erythritol, stevia, and baking powder in a separate bowl.

Step 3. Mix dry ingredients with melted butter. Add eggs and stir until smooth.

Step 4. Afterward, add water so you get a nice smooth batter.

Step 5. Spray some oil over the form and pour in the batter. Microwave for 6-7 minutes at 800 watts.

Get a toothpick and start checking whether it’s cooked after around 5 minutes. All microwaves are different and it might take a longer/shorter amount of time to bake based on wattage.

Step 6. To serve: cut the cake into 9 squares. Feel free to bit of whipped cream.

low carb peanut butter cake dessert recipe

Can I Turn This Into a Chocolate Peanut Butter Cake?

Yes, you certainly can do that. To do this, just add 2 – 3 tablespoons of unsweetened cocoa powder.

Unsweetened cocoa powder, unlike sweetened cocoa powder, is low in net carbs. One tablespoon of unsweetened cocoa powder contains only 1.3 grams of net carbs.

So, turning this recipe into a chocolate peanut butter cake would add less than 0.5 grams of net carbs per serving. It would also add some selenium and some more manganese to your cake.

low carb cake recipe

When and Why Should You Have This Low Carb Peanut Cake?

This Low Carb Peanut Cake is great anytime, breakfast, lunch, or even dinner. After all, who said you can’t have something sweet for your meals?

And it makes for a pretty decent meal. It has enough fat, protein, and fiber to keep you satiated for hours.

Also, it takes only 10 minutes to make from scratch. So, it’s the perfect cake to make for family occasions- you can even whip it up when your family arrives.

low carb dessert recipe

More Keto Dessert Recipes

Low Carb Doughnut Cookies

Keto Peanut Butter Balls

Keto Chocolate Cupcakes

Watch Full Instructions

keto peanut butter cake
5 from 2 votes

Low Carb Microwave Peanut Butter Cake

By Karo @ AllNutritious

10 Cals: 321 Protein: 11 Carbs: 15 Fat: 29

This low carb peanut butter cake is a great quick dessert on the go. You can make it in the microwave, so it's probably the quickest low carb cake you'll ever make and get to enjoy.
Prep: 5 minutes
Cook: 7 minutes
Total: 12 minutes
Servings: 9 slices

Ingredients 

  • 5 oz peanut butter (100g)
  • 5 oz salted butter (100g)
  • 2 cups almond flour
  • 4 eggs
  • 1/4 cup erythritol
  • 1/4 cup stevia
  • 2 tsp baking powder
  • 1/2 cup water

Topping (optional)

  • whipped cream

Instructions 

  • Melt butter and peanut butter in the microwave.
  • Mix almond flour, erythritol, stevia and baking powder in a separate bowl.
  • Mix dry ingredients with melted butter. Add eggs and stir until smooth.
  • Afterward, add water so you get a nice smooth batter.
  • Spray some oil over the form and pour in the batter. Microwave for 6-7 minutes at 800 watts. Get a toothpick and start checking whether it’s cooked after around 5 minutes. All microwaves are different and it might take a longer/shorter amount of time to bake based on wattage.
  • To serve: cut the cake into 9 squares. Feel free to bit of whipped cream.

Recipe Video

Notes

Nutrition

Serving: 1 cake slice | Calories: 321kcal | Carbohydrates: 15g | Protein: 11g | Fat: 29g | Saturated Fat: 8.4g | Cholesterol: 107mg | Sodium: 265mg | Fiber: 3.7g | Sugar: 1.9g

Nutrition information is automatically calculated, so should only be used as an approximation.

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