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Vanilla mug cake without milk topped with rainbow sprinkles.
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Vanilla Mug Cake without Milk

This Vanilla Mug Cake without Milk is fluffy, moist, and made in minutes. An easy microwave cake using a regular coffee mug — no milk needed.
Prep Time 10 minutes
Cook Time 2 minutes
Total Time 12 minutes
Servings 1 serve
Calories 574kcal
Author Samantha Pickthall

Ingredients

  • 4 Tbsp all-purpose flour
  • 1 1/2 tsp cornstarch
  • 2 1/2 Tbsp granulated sugar
  • 1/2 tsp baking powder
  • Pinch salt
  • 2 Tbsp unsalted butter, melted
  • 2 Tbsp water
  • 1 Tbsp extra virgin olive oil, or any neutral flavoured oil
  • 1 tsp vanilla extract
US Customary - Metric

Instructions

  • Prepare the Mug: Lightly grease a microwave-safe mug (240–350 ml / 8–12 fl oz) with soft butter, coating the base and sides. Set aside.
  • Mix Dry Ingredients: In a small mixing bowl, whisk together the flour, cornstarch, sugar, baking powder, and salt until evenly combined.
  • Add Wet Ingredients: Add the melted butter, oil, water, and vanilla extract to the dry mixture. Whisk just until the batter is smooth and combined, avoiding overmixing, just until streaks of flour disappear, then stop.
  • Transfer to Mug: Pour the batter into the greased mug and gently smooth the top.
  • Microwave: Microwave on full power/high for 60-70 seconds before checking and until it has risen. The surface will look dry and set rather than glossy. You shouldn’t see any wet batter on top. The cake will pull away from the sides of the mug slightly, which is a good sign it’s cooked through. If needed, continue microwaving in 10-15 second bursts until just cooked. Microwave Wattage Note: This timing is based on my 900-watt microwave. If your microwave is more powerful, start checking earlier, around 50–60 seconds, to avoid overcooking.
  • Cooling: Let the mug cake rest for 2 minutes before eating.
  • Serve: Enjoy warm straight from the mug, or carefully loosen the edges and lift out. Delicious on its own or topped with sprinkles, whipped cream or a small dollop of frosting if desired. Enjoy!

Video

Notes

Cooked cake: If there’s any leftover, remove the mug cake from the mug and store it in an airtight container in the fridge for up to 2 days. Tip: If you prefer, you can leave it in the mug, covered loosely, but the bottom may be slightly more moist compared to storing in a container.
Reheating: Warm gently in the microwave for 10–15 seconds before enjoying.

Nutrition

Calories: 574kcal | Carbohydrates: 57g | Protein: 3g | Fat: 37g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 16g | Trans Fat: 1g | Cholesterol: 60mg | Sodium: 8mg | Potassium: 248mg | Fiber: 1g | Sugar: 31g | Vitamin A: 700IU | Calcium: 100mg | Iron: 2mg