Microwave sponge cake

Microwave sponge cake is a light and fluffy dessert made quickly in the microwave using basic ingredients. This recipe is perfect for satisfying sudden sweet cravings in just minutes.

05 Dec 2025
Cook time 7 min
Prep time 5 min

Ingredients:

1/2 cup self-raising flour
1 cup sugar
3 eggs
1/2 cup butter
1 cup milk (1% fat)
1 tsp vanilla extract

Microwave sponge cake is a quick and easy dessert that allows you to enjoy a fluffy, moist cake without the need for an oven. Perfect for spontaneous cravings or last-minute dessert plans, this recipe utilizes basic ingredients and can be prepared in just minutes. Follow the steps below to create your own microwave sponge cake.

Instructions:

1. Prepare Wet Ingredients:
- In a microwave-safe bowl, crack the eggs and beat them lightly with a whisk or fork.

2. Add Sugar and Vanilla:
- Add the sugar to the beaten eggs and whisk until the mixture is smooth and well-combined.
- Stir in the vanilla extract.

3. Incorporate Melted Butter:
- Melt the butter in a separate microwave-safe bowl or using the microwave in short bursts. Ensure it is completely melted but not too hot.
- Gradually add the melted butter to the egg mixture while whisking continuously to prevent curdling.

4. Mix in Milk:
- Pour in the milk and whisk until all the wet ingredients are well combined.

5. Combine Dry Ingredients:
- Gradually add the self-raising flour to the wet mixture. Whisk or stir gently to avoid lumps, mixing until just combined and smooth.

6. Prepare to Microwave:
- Ensure the mixture is in a large enough microwave-safe bowl to allow for rising during cooking. If using mugs, divide the batter evenly among them, filling each one about halfway.

7. Microwave the Cake:
- Place the bowl or mugs in the microwave. Microwave on high for 3-5 minutes.
- Time may vary depending on the microwave's power; start checking at the 3-minute mark by inserting a toothpick into the center. If it comes out clean or with a few moist crumbs, the cake is done.

8. Cool and Serve:
- Let the cake cool in the microwave-safe bowl or mugs for a few minutes before handling.
- Once slightly cooled, either enjoy directly from the bowl/mugs or tip out onto a plate.
- Serve as is, or with your favorite toppings such as whipped cream, fruit, or a dusting of powdered sugar.

With just a few common kitchen ingredients and a microwave, you can satisfy your sweet tooth in record time. This microwave sponge cake is not only convenient but also delicious. Perfect for any occasion, this recipe proves that you don't need an oven to create a delightful dessert. Happy baking!

Microwave sponge cake FAQ:

What is the microwave cooking time for this sponge cake?

Microwave the sponge cake on high for 3-5 minutes. Check for doneness starting at the 3-minute mark by inserting a toothpick into the center; it should come out clean or with a few moist crumbs.

Can I use a different type of flour instead of self-raising flour?

You can substitute all-purpose flour, but you will need to add a leavening agent. For every cup of all-purpose flour, include 1.5 teaspoons of baking powder to achieve similar results.

How should I store leftover microwave sponge cake?

Store any leftover sponge cake in an airtight container in the refrigerator for up to 3 days. You can also freeze portions for up to a month, ensuring they are well-wrapped.

What can I use as a substitute for butter in this recipe?

You can substitute melted coconut oil or vegetable oil for butter in equal amounts. However, note that the flavor may vary slightly depending on your choice.

How do I know when the sponge cake is fully done cooking?

The cake is done when a toothpick inserted into the center comes out clean or with a few moist crumbs. If it appears wet or sticky, microwave for additional 30-second intervals until done.

Tips:

- Make sure to use self-raising flour for the best rise. If you only have all-purpose flour, you can make your own by adding 1.5 teaspoons of baking powder and 0.5 teaspoon of salt per cup of flour.

- Whisk the eggs thoroughly to incorporate air, which helps make the cake light and fluffy.

- Use a microwave-safe dish to avoid any accidents or damage to your cookware.

- Microwave ovens vary in power, so keep an eye on the cake as it cooks. Start with a shorter cooking time and add more as needed to prevent overcooking.

- Let the cake cool for a few minutes before removing it from the dish to avoid breaking it apart.

Nutrition per serving

8 Servings
Calories 280kcal
Protein 4.58g
Carbohydrates 33g
Fiber 0.28g
Sugar 27g
Fat 14g

Microwave sponge cake