Blueberry Lemon Mug Cake Recipe — Ready in Minutes

This simple Blueberry Lemon Mug Cake is a fluffy, moist single-serving cake ready in minutes with minimal cleanup. Juicy blueberries and bright lemon make this an irresistible quick treat.

Have your lemon mug cake, and eat it too!

When you want cake but don’t have the time or energy to bake a full pan, a mug cake is the perfect solution. It takes about five minutes from start to finish, uses only a couple of dishes, and yields a tender, single-serving dessert—ideal when you don’t need to feed a crowd.

Why a mug cake works

Mug cakes are incredibly simple: whisk, microwave, and enjoy. No running to the store for specialty ingredients, no mixing bowls piled high, and no lengthy baking. This Blueberry Lemon Mug Cake is one of my favorites—light, moist, and bright with lemon. I like to top mine with a scoop of vanilla ice cream for a contrast of hot and cold.

Ingredients for Blueberry Lemon Mug Cake

• Milk: Whole milk or almond milk both work well.
• Greek yogurt: Plain Greek yogurt adds moisture and tang. You can substitute sour cream or add an extra tablespoon of milk if you don’t have yogurt.
• Blueberries: Fresh or frozen both work; frozen berries can be slightly sweeter.
• Lemon zest: About 1 teaspoon (zest from roughly half a lemon, depending on size).

How to make this Blueberry Lemon Mug Cake

• Melt the butter in a microwave-safe mug and stir in the sugar until smooth.
• Add the milk, vanilla, and Greek yogurt (or an extra tablespoon of milk if skipping yogurt) and whisk to combine.
• Stir in a pinch of sea salt, the lemon zest, and the baking powder.
• Add the flour, stirring a little at a time until incorporated; a small whisk or spoon both work fine.
• Fold in 10–12 blueberries, then microwave on high until the cake has set—about 1 to 1½ minutes depending on your microwave.
• Let the cake cool for a few minutes before serving. Top with ice cream if desired.

Notes and tips

• Always check that your baking powder is fresh. Old baking powder is a common reason quick cakes don’t rise properly.
• If you prefer a muffin-like flavor, omit the lemon zest for a classic blueberry mug cake.
• Microwave power varies—cook time may need slight adjustment. Start with less time and add a few seconds if needed.
• If you’d rather bake this in an oven-safe dish, bake at 350°F for about 10–15 minutes until set.

Next time you crave a slice of cake but don’t want the fuss, make this Blueberry Lemon Mug Cake: a quick, single-serve dessert that’s easy to whip up and hard to resist.

Recipe details