Birthday Cake Microwave Mug Cake Recipe
Introduction
This Birthday Cake Microwave Cake is a quick and simple treat that satisfies your sweet tooth in just minutes. Perfect for celebrating special moments or whenever you crave a single-serving dessert, it combines classic cake flavors with a light, protein-packed twist.

Ingredients
- 3 Tbsp (30g) Sugar Free Yellow Cake Mix (Pillsbury recommended)
- 1/2 scoop (17g) Vanilla Protein Powder
- 3 Tbsp (46g) Liquid Egg Whites or 1 whole egg white
- 1 Tbsp (14g) Light Butter
- 2 oz Fat Free Cream Cheese
- 1 tsp Clear Imitation Vanilla
- 1 Tbsp Low Cal Sweetener (Swerve Confectioners recommended)
- 1 tsp Sprinkles
Instructions
- Step 1: In a mug or small bowl, mix together the cake ingredients: sugar free yellow cake mix, protein powder, egg whites, butter, and vanilla. For best results, mix in a bowl and then transfer to a mug sprayed with nonstick cooking spray.
- Step 2: Microwave the mug or bowl for 50-60 seconds, or until the cake is cooked through.
- Step 3: In a small bowl, combine the fat free cream cheese, low cal sweetener, and vanilla to create the frosting.
- Step 4: Either flip the cake out onto a plate and spread the frosting on top, or pour the frosting directly over the cake in the mug. Sprinkle with sprinkles to finish.
Tips & Variations
- Using a bowl to mix and then transferring to a greased mug helps achieve a smoother texture and prevents sticking.
- Try substituting the vanilla protein powder with chocolate for a different flavor twist.
- Add a pinch of cinnamon or nutmeg to the cake batter for extra warmth.
- If you prefer a dairy-free version, substitute the cream cheese with a vegan cream cheese alternative.
Storage
This microwave cake is best enjoyed fresh but can be stored covered in the refrigerator for up to 2 days. Reheat briefly in the microwave for about 10–15 seconds before serving to soften the cake and frosting.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a whole egg instead of liquid egg whites?
Yes, you can use 1 whole egg instead of 3 tablespoons of liquid egg whites. This may make the cake slightly richer.
Is there a way to make the cake without protein powder?
You can omit the protein powder and replace it with an equal amount of additional cake mix, but the texture and nutritional profile will vary slightly.
PrintBirthday Cake Microwave Mug Cake Recipe
A quick and easy Birthday Cake Microwave Cake recipe that combines sugar-free cake mix and protein powder for a delicious single-serving treat. Perfect for a speedy celebration dessert with a creamy fat-free cream cheese frosting and festive sprinkles.
- Prep Time: 5 minutes
- Cook Time: 1 minute
- Total Time: 6 minutes
- Yield: 1 serving 1x
- Category: Dessert
- Method: Microwaving
- Cuisine: American
- Diet: Low Calorie
Ingredients
Cake Ingredients
- 3 Tbsp (30g) Sugar Free Yellow Cake Mix (Pillsbury recommended)
- 1/2 scoop (17g) Vanilla Protein Powder
- 3 Tbsp (46g) Liquid Egg Whites or 1 whole egg white
- 1 Tbsp (14g) Light Butter
Frosting Ingredients
- 2 oz Fat Free Cream Cheese
- 1 tsp Clear Imitation Vanilla
- 1 Tbsp Low Cal Sweetener (Swerve Confectioners suggested)
- 1 tsp Sprinkles
Instructions
- Prepare the Cake Batter: In a mug or small bowl, combine the sugar free yellow cake mix, vanilla protein powder, liquid egg whites, and light butter. For best results, mix in a bowl thoroughly before transferring the batter to a mug that has been sprayed with nonstick cooking spray to prevent sticking.
- Microwave the Cake: Place the mug in the microwave and cook for 50-60 seconds. The cake will rise and cook through quickly, resulting in a moist and fluffy texture.
- Prepare the Frosting: While the cake microwaves, mix the fat free cream cheese, clear imitation vanilla, and low-calorie sweetener in a small bowl until smooth and creamy.
- Assemble and Decorate: Once the cake is done, either invert it onto a plate to frost the top or spread the cream cheese frosting directly on the cake in the mug. Finish by sprinkling the sprinkles over the frosting to give it a festive birthday cake look.
Notes
- Using a bowl to mix before transferring to the mug helps ensure even mixing and smoother batter texture.
- Adjust microwave time slightly depending on the wattage of your microwave to avoid overcooking.
- The frosting can be spread warm or chilled for different textures.
- You can substitute the sugar-free cake mix with a regular yellow cake mix if desired, but sugar content will increase.
- This recipe is perfect for a quick single serving dessert or snack.
Keywords: microwave cake, birthday cake, quick dessert, single serving cake, sugar free cake, protein cake