Watermelon Cake

Learn how to make a quick and easy watermelon cake recipe that’s fresh, no bake, healthy, beautiful and perfect for Summer parties, birthday parties or even weddings.

I want to clarify that this is a real/fresh watermelon cake and not a watermelon shaped cake or a watermelon cake recipe from scratch.

The easy cake trend has been around for a few years now but I wanted to do something different with that concept.

Instead of making a big watermelon cake, I made tiered mini watermelon cakes and decorated them with fresh edible flowers. I think they turned out GORGEOUS and are perfect for Summer parties.

Watermelon Cake

Tips for no bake watermelon cake recipe

  • Make sure to pat the watermelon dry with paper towels to get rid of excess juices because if the watermelon is too “wet,” icing won’t stick to it properly.
  • You must use edible flowers. Ask your florist, if you are unsure.
  • You can make 1 big cake instead of these mini cakes.
  • ANY shape of cutter can be used. Metal cutters create a sharper cut compared to the plastic ones.
  • If you are decorating with other smaller fruits, use toothpicks to stick them securely into place. I use this trick to make my kiddo’s favorite strawberry watermelon cake.
  • You can also follow the same instructions to make a cantaloupe cake or even a honeydew cake.
  • To make watermelon ice cream cake, use ice cream frosting OR cover the cake in partially melted ice cream. Keep the cake frozen until you are ready to serve.
  • To make watermelon birthday cake/ watermelon smash cake, decorate with candies, sprinkles and you can even add a little birthday candle that kids can blow out.

Watermelon Cake Recipe and Tutorial

How to make a watermelon cake?

  1. Remove the watermelon rind with a sharp knife.
  2. Cut watermelon into big circular pieces.
  3. Use cutters to cut out big, small and medium shapes.
  4. Stack them on top of each other like a watermelon wedding cake.
  5. Decorate with fresh flowers.

What is watermelon cake?

There are 3 different types:

  1. The FIRST one is a baked cake, made with flour, sugar, eggs, watermelon juice e.t.c.
  2. The SECOND one is a cake that is decorated to look like a watermelon, using fondant or buttercream.
  3. The THIRD one is a fresh cake that’s made by peeling the rind and carving the inside into the shape of a round cake and then frosting it in whipped cream or buttercream.

How to decorate watermelon cake?

There are many watermelon cake decoration ideas:

  • Fresh berries (strawberry, blackberry, raspberry, blueberry)
  • Pineapple slices
  • Grapes
  • Nuts
  • Colorful frostings
  • Edible flowers
  • Fresh herbs

How to carve watermelon cake?

Use a very sharp knife. Different sizes of blades help a lot too.


It should be stored in the fridge because after all, it is fresh fruit and it can go bad in the heat.

Easy Watermelon Cake

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Fresh Watermelon Cake

Prep Time: 20 mins
Total Time: 20 mins
Learn how to make a quick and easy watermelon cake recipe that’s fresh, no bake, healthy, beautiful and perfect for Summer parties, birthday parties or even weddings. 
Yield: 10 Mini cakes



  • Use a sharp knife to peel the rind off your watermelon.
  • Then, cut the watermelon into big round slices.
  • Use the big, medium and small square cutters to cut out three square pieces.
  • Stack the watermelon pieces on top of each other (with buttercream icing between each layer, if you like). 
  • Decorate the cake with flowers. Enjoy!


  • Read all my tips above.
  • Leftovers can be stored in the fridge for up to 24 hours. 


Calories: 229kcal, Carbohydrates: 49g, Protein: 2g, Fat: 4g, Sodium: 46mg, Potassium: 511mg, Fiber: 1g, Sugar: 42g, Vitamin A: 2560IU, Vitamin C: 36.5mg, Calcium: 31mg, Iron: 1.1mg
Course: Dessert
Cuisine: American
Calories: 229
Author: CakeWhiz

4 comments on “Watermelon Cake”

  1. These are just beautiful! I love how simple and elegant they look! AND it’s healthy too!!

  2. Gorgeous dessert, gorgeous plates!

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