Microwave Blueberry Mug Cake Recipe
Introduction
This Microwave Blueberry Mug Cake is a quick and delightful single-serving dessert that comes together in minutes. With simple pantry ingredients and fresh or frozen blueberries, it offers a tender, moist cake bursting with fruity flavor—perfect for a cozy treat anytime.

Ingredients
- ¼ cup all-purpose flour
- 2 tablespoons granulated sugar
- ¼ teaspoon baking powder
- ⅛ teaspoon salt
- 3 tablespoons milk (dairy or plant-based)
- 1 tablespoon vegetable oil (or melted butter)
- ¼ teaspoon vanilla extract
- 2-3 tablespoons fresh or frozen blueberries
Instructions
- Step 1: In a microwave-safe mug, whisk together the flour, sugar, baking powder, and salt until evenly combined.
- Step 2: Add milk, vegetable oil, and vanilla extract to the dry ingredients. Stir thoroughly until a smooth batter forms without lumps.
- Step 3: Gently fold in the blueberries, distributing them evenly throughout the batter.
- Step 4: Microwave the mug on high for 1 to 1½ minutes. Cooking time may vary depending on your microwave’s power—stop when the cake has risen and is set but still moist.
- Step 5: Allow the cake to cool for a minute or two before enjoying directly from the mug or served on a plate.
Tips & Variations
- For a richer flavor, substitute vegetable oil with melted butter.
- Use almond, soy, or oat milk as a dairy-free alternative with no loss of moisture.
- Try adding a sprinkle of cinnamon or lemon zest to brighten the flavor.
- If using frozen blueberries, no need to thaw; just fold them in straight from the freezer.
Storage
This mug cake is best enjoyed fresh for optimal texture and flavor. If you have leftovers, cover the mug with plastic wrap and refrigerate for up to 1 day. Reheat in the microwave for 15–20 seconds to warm through before eating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use other berries instead of blueberries?
Absolutely! Raspberries, blackberries, or chopped strawberries can be used with similar results. Keep the quantity the same to maintain the right moisture balance.
Why did my mug cake turn out dense?
Dense texture often results from overmixing the batter or microwaving too long. Stir the batter just until combined, and microwave in short intervals to avoid overcooking.
PrintMicrowave Blueberry Mug Cake Recipe
This Microwave Blueberry Mug Cake is a quick and easy single-serving dessert perfect for satisfying your sweet tooth in minutes. Using simple pantry staples like all-purpose flour, sugar, baking powder, and fresh or frozen blueberries, this mug cake delivers a soft, moist, and fluffy texture with bursts of fruity flavor. Ready in just about 5 minutes, it’s an ideal treat for when you want a homemade dessert without the wait.
- Prep Time: 5 minutes
- Cook Time: 1.5 minutes
- Total Time: 6.5 minutes
- Yield: 1 serving 1x
- Category: Dessert
- Method: Microwaving
- Cuisine: American
Ingredients
Dry Ingredients
- ¼ cup all-purpose flour
- 2 tablespoons granulated sugar
- ¼ teaspoon baking powder
- ⅛ teaspoon salt (pinch)
Wet Ingredients
- 3 tablespoons milk (whole or plant-based)
- 1 tablespoon vegetable oil
- ¼ teaspoon vanilla extract
Fruit
- 2–3 tablespoons fresh or frozen blueberries
Instructions
- Prepare the Mug: Select a microwave-safe mug (roughly 12 oz capacity) to ensure your cake has enough room to rise without overflowing.
- Mix Dry Ingredients: In the mug, combine ¼ cup all-purpose flour, 2 tablespoons granulated sugar, ¼ teaspoon baking powder, and a pinch (⅛ teaspoon) of salt. Stir well to evenly distribute the leavening and salt.
- Add Wet Ingredients: Pour in 3 tablespoons of milk, 1 tablespoon vegetable oil, and ¼ teaspoon vanilla extract to the dry ingredients. Stir thoroughly until you achieve a smooth, lump-free batter consistency.
- Fold in Blueberries: Gently fold 2-3 tablespoons of fresh or frozen blueberries into the batter, making sure they are evenly distributed throughout.
- Microwave the Cake: Place the mug in the microwave and cook on high power for about 90 seconds. Cooking time may vary depending on your microwave’s wattage; start checking around 70 seconds to prevent overcooking.
- Check Doneness: The cake should rise and appear set but still moist. Insert a toothpick or fork into the center; if it comes out clean or with moist crumbs, it’s ready.
- Cool and Serve: Allow the mug cake to cool for a minute or two to avoid burning your mouth, then enjoy straight from the mug or transfer onto a plate. Optionally, top with a dusting of powdered sugar or a scoop of ice cream for extra indulgence.
Notes
- You can substitute vegetable oil with melted butter for a richer flavor.
- Use any milk of choice, including plant-based alternatives like almond or soy milk.
- If using frozen blueberries, do not thaw before adding to the batter to prevent bleeding color in the cake.
- Microwave wattages vary; adjust cooking times accordingly to avoid overcooking or sogginess.
- For a chocolate twist, add a tablespoon of cocoa powder to the dry ingredients.
Keywords: microwave mug cake, blueberry mug cake, single serving dessert, quick dessert, easy cake recipe, microwaved cake

