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Classic and Simple Rhubarb Cake

May 15, 2025 by Davee Kilian Leave a Comment

This simple and classic rhubarb cake is full of flavor in every bite. The mix of the tart rhubarb with the other ingredients makes this a delicious and moist rhubar cake. It is perfect for the Spring with the fresh rhubarb and a treat to share with everyone!

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rhubarb cake pin picture with piece of cake on plate.

This cake recipe comes from my grandmother. Often times basic cakes from family members past are so special to create for our own families and friends. The memory that this cake brings is always one of family gatherings and my grandmothers famous rhubarb cake. Nothing extra ordinary, but still a sweet memory to have and now to share with others.

Cake is honestly not my favorite dessert. It often tends to be dry and lacking in flavor. This rhubarb cake however, does not disappoint. It is very moist and has a beautiful texture and flavor with the added rhubarb. The cake can also go well with a basic cream cheese frosting (which I will share below as well) or just a cinnamon and sugar sprinkle on top.

Looking for other delicious cakes with special add -ins. Try my chocolate zuchinni cake or my einkorn rhubarb cake.

Tips for making Rhubarb Cake

  • Use fresh chopped rhubarb. Fresh rhubarb will not add more liquid like frozen rhubarb would. It also keeps its form and does not condense into a mushy texture like frozen often can.
  • A whole fat milk or buttermilk will make this recipe have a richer flavor. I have not tested the recipe with dairy free milk.
  • Store in the refrigerator to keep fresher longer.
  • Unbleached all-purpose flour is what I use for this recipe. I have not tried it with other flour.
  • Not over baking or under baking the cake is key. Under baked and it will be gooy. Overbaked and it will dry out and get crusty on top.
Frosted 9x13 cake.

Ingredients and Tools needed

Equipment:

Mixing bowl or stand up mixer

spatula

9 x 13 baking dish

cutting board

knife – for cutting rhubarb

measuring cups

measuring spoons

Ingredients:

freshly chopped rhubarb

milk

eggs

vanilla

coconut oil or butter

brown sugar

baking soda

all-purpose flour

Cream cheese frosting ingredients

cream cheese

butter

vanilla

confectioners sugar

How to make Rhubarb Cake

Preheat oven to 350 degrees. Wash and chop the fresh rhubarb and set aside to add later.

In a mixing bowl or stand mixer cream the slightly softened butter and brown sugar.

Add eggs, one at a time, beating well after each.

Stir the soda into the milk and to the mixture. Blend in flour and vanilla and stir in the rhubarb.

Bowl of rhubarb cake batter with striped towel on side.

Put in a 9×13 greased pan.

Bake for 30 minutes in a preheated 350 degree oven. Cake is done when golden brown or a toothpick inserted in middle comes out clean.

Unfrosted 9x13 rhubarb cake.
Unfrosted cake with pile of frosting in corner.

Let the cake cool before frosting with this delicious basic cream cheese frosting or enjoy plain with a dollop of ice cream!

Piece of cake on a plate with bite on fork. Partial cake behind.

Store unfrosted cake for 2-3 days on the counter or in the fridge for 5 days. Frosted cake should be stored in the fridge and will last up to 5 days. But don’t worry, it will be eaten before then!

If you try this recipe and love it, please come back and give it five stars!

Piece of cake on plate with bite on fork.

Classic and Simple Rhubarb Cake

This simple and classic rhubarb cake is full of flavor in every bite. The mix of the tart rhubarb with the other ingredients makes this a delicious and moist rhubar cake. It is perfect for the Spring with the fresh rhubarb and a treat to share with everyone!
Print Recipe Pin Recipe
Prep Time 10 mins
Cook Time 30 mins
Total Time 40 mins
Course Dessert
Cuisine American
Servings 16

Equipment

  • Mixing bowl or stand mixer
  • spatula
  • cutting board
  • knife
  • measuring cups
  • measuring spoons

Ingredients
  

  • 1½ cups brown sugar
  • ½ cup butter or coconut oil softened
  • 2 eggs
  • 1 cup milk whole or buttermilk
  • 1 tsp baking soda
  • 2 cups all-purpose flour
  • 1 tsp vanilla
  • 2 cups rhubarb chopped

Cream cheese frosting

  • 8 oz cream cheese softened
  • ½ cup butter softened
  • 2 tsp vanilla
  • 4 cups confectioners sugar

Instructions
 

  • Preheat oven to 350 °F
  • In a mixing bowl or stand mixer cream the slightly softened butter and brown sugar.
  • Add eggs, one at a time, beating well after each.
  • Stir the soda into the milk and to the mixture. Blend in flour and vanilla and stir in the rhubarb.
  • Put in a 9×13 greased pan.
  • Bake for 30 minutes in a preheated 350 degree oven. Cake is done when golden brown or a toothpick inserted in middle comes out clean.
  • Let the cake cool before frosting with this delicious basic cream cheese frosting or enjoy plain with a dollop of ice cream!

Cream cheese frosting

  • In a mixing bowl or stand mixer cream the softened cream cheese, butter and vanilla until smooth.
  • Gradually add in the confectioners sugar and mix.

Notes

  • Use fresh chopped rhubarb. Fresh rhubarb will not add more liquid like frozen rhubarb would. It also keeps its form and does not condense into a mushy texture like frozen often can.
  • A whole fat milk or buttermilk will make this recipe have a richer flavor. I have not tested the recipe with dairy free milk.
  • Store in the refrigerator to keep fresher longer.
  • Unbleached all-purpose flour is what I use for this recipe. I have not tried it with other flour.
  • Not over baking or under baking the cake is key. Under baked and it will be gooy. Overbaked and it will dry out and get crusty on top.
Keyword easy cake recipe, rhubarb cake, simple cake, simple dessert

Filed Under: Desserts Tagged With: grandmother's rhubarb cake, moist cake, rhubarb cake, simple cake, simple cake recipe, simple dessert

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