Lemony Mug Cake

Lemony Mug Cake

photo of Lemony Mug Cake

I’m in love with this new lemon mug cake I recently made.

I posted a lemon mug cake recipe last year after receiving multiple requests for a lemon flavored mug cake. While it tasted satisfactory, I always felt like there was room for improvement, so I’ve been trying to make a better version ever since.
photo of a spoonful of Lemony Mug Cake
My biggest struggle was trying to recreate the lemony flavor without having the cake end up tasting like lemonade. After about a dozen attempts, I finally had a breakthrough.

Just adding lemon juice and lemon zest wasn’t enough. I needed something more concentrated. Like lemon curd. I was able to find some in the jam section of my local grocery store. It’s concentrated, it’s sweet, and adding a heaping spoonful of it to the cake batter gave it that lemony taste I was desperately searching for.

I loved how this cake came out. So light and fluffy and lemony.

overhead photo of Lemony Mug Cake

Lemony Mug Cake

Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
Servings: 1

Lemon curd gives this simple mug cake a bright lemon flavor and it’s so easy to make!

Print Recipe


  • 4 tbsp all- purpose flour
  • 1/4 tsp baking powder
  • 2 tsp granulated sugar
  • 3 tbsp fat-free milk
  • 1/4 tsp vanilla extract
  • 1/2 tbsp vegetable oil
  • 1 tsp fresh lemon zest
  • 1 tbsp lemon curd


  1. Combine all ingredients except lemon zest and lemon curd into an oversized microwave-safe mug. Mix with a small whisk until batter is smooth.

  2. Add in lemon zest and lemon curd and mix until batter is smooth.

  3. Cook in the microwave for about 1 minute. Let cake cool a few minutes before eating. The cake is best consumed while still warm or within a few hours of it being cooked. Eat with more lemon curd if desired.