Rhubarb Cake Recipe: Easy, Moist and Classic Homemade Version

If you are looking for a rhubarb cake recipe, this article gives you exactly what you need: clear ingredients, simple step-by-step instructions, baking tips, and helpful variations.

This is a classic homemade rhubarb cake recipe with a soft crumb and balanced sweet-tart flavor. It is easy to follow, beginner-friendly, and perfect for spring or summer baking.

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What Is a Rhubarb Cake Recipe?

A rhubarb cake recipe is a fruit cake made with chopped rhubarb mixed into a vanilla-based batter. Rhubarb has a naturally tart taste, so it pairs well with sugar and butter to create a balanced flavor.

Most traditional rhubarb cake recipes are:

• Lightly sweet

• Soft and moist

• Simple and unfrosted

• Served as a dessert or coffee cake

This type of cake is popular during rhubarb season, especially in spring.

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Why This Rhubarb Cake Recipe Works

This easy rhubarb cake recipe works well because it uses:

• Sour cream for moisture

• The right balance of sugar and tart rhubarb

• A simple mixing method

• Basic pantry ingredients

The result is a moist rhubarb cake with a tender texture that is not too dense.

Ingredients for This Rhubarb Cake Recipe

Below are the ingredients you need for this homemade rhubarb cake recipe.

Ingredients

• 2 cups all-purpose flour

• 1½ teaspoons baking powder

• ½ teaspoon baking soda

• ½ teaspoon salt

• ½ cup unsalted butter (softened)

• 1 cup granulated sugar

• 2 large eggs

• 1 teaspoon vanilla extract

• 1 cup sour cream (or plain yogurt)

• 2 cups chopped fresh rhubarb

You can also use frozen rhubarb. If using frozen rhubarb, thaw and drain it first to remove excess moisture.

How to Make This Rhubarb Cake Recipe

Follow these simple steps for best results.

Step 1: Prepare the Oven and Pan

Preheat your oven to 350°F (175°C).
Grease a 9x9-inch baking pan or line it with parchment paper.

Step 2: Mix the Dry Ingredients

In a medium bowl, whisk together:

• Flour

• Baking powder

• Baking soda

• Salt

Set aside.

Step 3: Cream the Butter and Sugar

In a large bowl:

• Beat the softened butter and sugar until light and fluffy.

• Add eggs one at a time.

• Mix in vanilla extract.

This step helps create a soft texture in the rhubarb cake.

Step 4: Combine Wet and Dry Ingredients

• Add half of the dry mixture to the butter mixture.

• Mix gently.

• Add sour cream and mix again.

• Add the remaining dry ingredients.

Do not overmix. Stir just until combined.

Step 5: Add the Rhubarb

Fold the chopped rhubarb into the batter gently.

The batter will be thick. This is normal.

Step 6: Bake the Rhubarb Cake

Spread the batter evenly in the pan. Bake for 40–50 minutes.

Insert a toothpick into the center. If it comes out clean, the cake is done.

Let the cake cool before slicing.

Tips for a Moist Rhubarb Cake Recipe

Use Fresh Rhubarb

Fresh rhubarb gives the best texture. If using frozen rhubarb, always remove extra liquid.

Do Not Overmix

Overmixing can make the cake dense instead of soft.

Measure Flour Correctly

Spoon the flour into your measuring cup and level it off. Too much flour can make the cake dry.

Adjust Sweetness if Needed

If your rhubarb is very tart, you can increase sugar slightly. If it is mild, keep the recipe as written.

Rhubarb Cake Recipe Variations

This basic rhubarb cake recipe can be adjusted in different ways.

Strawberry Rhubarb Cake Recipe

Replace one cup of rhubarb with chopped strawberries for a sweeter flavor.

Rhubarb Crumble Cake Recipe

Add a simple topping made from:

• ½ cup flour

• ¼ cup brown sugar

• ¼ cup cold butter

• ½ teaspoon cinnamon

Sprinkle over the batter before baking.

Gluten-Free Rhubarb Cake Recipe

Use a 1:1 gluten-free flour blend instead of all-purpose flour.

Low-Sugar Rhubarb Cake Recipe

Reduce the sugar by about 20 percent for a lighter version.