Microwave Lemon Meringue Mug Cake
A single-serving lemon cake with a fluffy meringue topping, ready in minutes using simple pantry ingredients. This american-inspired desserts ready in about 7 minutes layers all-purpose flour, granulated sugar, baking powder into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 250 calories and feeds 1, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4 tbsp all-purpose flour
- 3 tbsp granulated sugar
- 1/4 tsp baking powder
- 3 tbsp milk
- 1 tbsp fresh lemon juice
- 1 tsp lemon zest
- 1 tbsp vegetable oil
- 1 large egg white
- 1/8 tsp cream of tartar
- 1 tbsp powdered sugar
Instructions
- Step 1: In a microwave-safe mug, whisk together 4 tbsp all-purpose flour, 3 tbsp granulated sugar, and 1/4 tsp baking powder until combined.
- Step 2: Stir in 3 tbsp milk, 1 tbsp fresh lemon juice, 1 tsp lemon zest, and 1 tbsp vegetable oil until the batter is smooth and uniform.
- Step 3: In a separate small bowl, beat 1 large egg white with 1/8 tsp cream of tartar until soft peaks form, then gently fold in 1 tbsp powdered sugar to stabilize the meringue.
- Step 4: Spoon the meringue over the batter in the mug, spreading evenly.
- Step 5: Microwave on high for 90 seconds until the cake has risen and the meringue is set with a slightly golden top.
- Step 6: Let cool for 2 minutes before enjoying warm, tasting the bright lemon flavor with the airy meringue.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Microwave Lemon Meringue Mug Cake take to make?
Total time is about 7 minutes (5 min prep + 2 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.
How do I store leftover Microwave Lemon Meringue Mug Cake?
Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.
Can I substitute ingredients in Microwave Lemon Meringue Mug Cake?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Microwave Lemon Meringue Mug Cake for a different number of people?
The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Microwave Lemon Meringue Mug Cake?
American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
