Strawberry Rhubarb Cake

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This Strawberry Rhubarb Cake is an easy-to-make recipe that’s perfect for summer entertaining. Because it’s a naked cake, it’s also super easy to decorate!


It’s IBC’s unofficial rhubarb week. On Monday I shared my recipe for Strawberry Rhubarb Syrup and mentioned it would be delicious poured over a cake. Well, I made that happen today! I’m showing you how to make this Strawberry Rhubarb Cake!

Gorgeous, right?

Strawberry Rhubarb Cake | Inspired by Charm

Why You’ll Love This Cake

I’ve been wanting to make a cake like this for a while. If you read Posie Get Cozy, she’s always creating these beautiful cakes with icing just in between the layers and on the top.

Then, she delicately decorates the top with flowers and berries. I’ve always thought there was something so naturally perfect about those cakes.

They’re simple, but all of the colors and textures make them incredibly beautiful. Plus, they’re really easy since there’s no fussing with fancy frosting.

Anyway, I’m glad I took the time to try this recipe. It was the perfect one.

Strawberry Rhubarb Cake | Inspired by Charm

How to Make

For the cake batter, I just used a box mix: Pink Velvet. It’s new from Duncan Hines. Of course, you could use any box mix or your favorite from-scratch recipe.

Once the cakes were baked I poked holes in the top, then poured about 1/2 a cup of strawberry rhubarb syrup into all the little holes. You wouldn’t believe how most and flavorful this makes the cake. (I didn’t actually cut the cake for my pictures, but trust me on this.)

Strawberry Rhubarb Cake | Inspired by Charm

The frosting is one of my favorites: butter cream. Simple. Delicious.

Strawberry Rhubarb Cake | Inspired by Charm

I layered strawberries in the middle for something special.

Then for the top, I layered on more frosting and topped it with flowers and strawberries. Some of the flowers are from the store; some came from my yard.

Strawberry Rhubarb Cake | Inspired by Charm
Strawberry Rhubarb Cake | Inspired by Charm

I hate to keep saying this, but it’s beautiful, isn’t it? Please tell me I’m not the only one who sees this.

Strawberry Rhubarb Cake | Inspired by Charm
Strawberry Rhubarb Cake | Inspired by Charm

Anyway, this Strawberry Rhubarb Cake is a super easy cake to make. Flavorful, moist, and totally adorable. Give it a try and let me know what you think.

More strawberry rhubarb recipes?

If you enjoy this recipe, please leave a comment and a 5-star rating below. Also, I hope you’ll follow along on Instagram and TikTok for daily updates and behind-the-scenes looks at my process. There’s even more inspiration on Facebook and Pinterest!

Strawberry Rhubarb Cake

Turn a box cake mix into a fabulous layered Strawberry Rhubarb Cake. Made with buttercream frosting, layered with strawberries, and decorated with fresh flowers, this cake wins in flavor and presentation.
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Course: Dessert
Cuisine: American
Keyword: apple cake, rhubarb, strawberries
Prep Time: 20 minutes
Cook Time: 24 minutes
Total Time: 44 minutes
Servings: 12
Calories: 619kcal


  • 1 box cake mix I used Pink Velvet from Duncan Hines. Strawberry cake mix would work too.
  • 3 eggs
  • 2/3 cup water
  • 1/2 cup unsalted butter (or oil depending on your cake mix)
  • 1 1/2 cup Strawberry Rhubarb Syrup*
  • 1 cup strawberries sliced (extra for garnish)



  • Begin by baking your cakes according to the package directions in two 9" round cake pans lined with parchment paper on the bottom. (You'll need eggs, water, and butter for the cake mix.) Once baked, allow the cakes to cool in the pans.
  • When the cakes are cooled, poke holes in the top of each with a wooden skewer or fork. Then slowly pour 3/4 cup of strawberry rhubarb syrup onto each cake. Use a spatula, if necessary, to evenly spread out the syrup.
  • Chill the cakes for about an hour.
  • In the meantime, mix the butter cream frosting.
  • Beat together the butter until smooth. Then slowly add the powdered sugar. Add the vanilla and as much of the heavy whipping cream as needed until you achieve the desired consistency.
  • To assemble the cake, removed both cakes from the round pans.
  • Place a dollop of frosting on the first cake and spread it out evenly to the edges. Add a thin layer of sliced strawberries on top of the frosting.
  • Place the second cake pn top of the first one and spread a layer of frosting on the top.
  • Add whole strawberries and edible flowers.


You can make strawberry rhubarb syrup at home. It’s easy, delicious, and has a variety of uses beyond this cake. 


Calories: 619kcal | Carbohydrates: 97g | Protein: 4g | Fat: 26g | Saturated Fat: 16g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 103mg | Sodium: 343mg | Potassium: 96mg | Fiber: 1g | Sugar: 79g | Vitamin A: 788IU | Vitamin C: 7mg | Calcium: 116mg | Iron: 3mg

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Recipe Rating


  1. This cake is stunning!! Question about the fresh flowers on top….i know that people will not be eating them, but do they have to be edible to be touching the cake and essentially what people will be eating? Just concerned they could be harmful to be leaching into the frosting? I know, kind of a weird question…

  2. That cake is gorgeous, and I love that you’re totally rocking the box mix! I’m a big believer in the “semi-homemade” approach, though I take no fault with from-scratch, obviously. (And I’ll chow down either way.) Definitely have to give this one a try!