Rhubarb Cake with Butter Sauce


Indulge in the harmonious blend of tangy rhubarb and rich buttery goodness with our irresistible Rhubarb Cake topped with velvety Butter Sauce. This classic dessert is a celebration of seasonal flavors and comforting sweetness, perfect for any occasion. In this article, we’ll guide you through the simple steps to create this culinary masterpiece in your own kitchen, ensuring a delightful treat for you and your loved ones.

Ingredients Spotlight:

  • 4 cups all-purpose flour
  • 2 cups granulated sugar
  • 4 teaspoons baking powder
  • ½ teaspoon salt
  • 4 cups rhubarb, diced (fresh or frozen)
  • 2 cups milk
  • 6 tablespoons butter, melted
  • ½ cup (1 stick) butter
  • 1 cup sugar
  • ¾ cup heavy cream

Directions Made Simple:

  1. Preheat your oven to 350°F (175°C). Grease a 9 x 13 inch baking pan to prepare.
  2. In a large bowl, whisk together the flour, granulated sugar, baking powder, and salt until thoroughly combined.
  3. Gently fold in the diced rhubarb, milk, and melted butter into the dry ingredients mixture until just incorporated. Avoid overmixing to maintain a tender texture.
  4. Pour the batter into the prepared baking pan, spreading it evenly.
  5. Bake in the preheated oven for approximately 45 minutes, or until a toothpick inserted into the center comes out clean.
  6. Once baked, remove the cake from the oven and allow it to cool to room temperature in the pan.
  7. While the cake cools, prepare the decadent Butter Sauce. In a saucepan, combine the butter, sugar, and heavy cream. Stirring constantly, bring the mixture to a gentle boil over medium heat. Let it bubble for about a minute, ensuring the sugar is fully dissolved and the sauce is smooth and glossy. Remove from heat and let it cool slightly.
  8. Once the cake has cooled, slice it into generous portions and drizzle each piece with the warm Butter Sauce.
  9. Serve and enjoy the delightful combination of moist rhubarb cake and luxurious buttery sauce!

Cooking Stats:

  • Prep Time: 15 minutes
  • Cooking Time: 45 minutes
  • Total Time: Approximately 2 hours
  • Servings: Makes about 15 servings, perfect for sharing or indulging in seconds.

Serving Tips:

  1. For an elegant presentation, dust the sliced Rhubarb Cake with a sprinkle of powdered sugar just before serving.
  2. Pair each serving with a dollop of whipped cream or a scoop of vanilla ice cream to enhance the dessert’s richness and provide a delightful contrast of temperatures and textures.
  3. Garnish with fresh mint leaves or thinly sliced rhubarb ribbons for a touch of color and visual appeal.
  4. Serve the Rhubarb Cake alongside a cup of hot tea or coffee for a cozy and satisfying dessert experience.

Storage Tips:

  1. Store any leftover Rhubarb Cake in an airtight container at room temperature for up to 2 days. Ensure the cake is completely cooled before transferring to prevent condensation.
  2. Alternatively, refrigerate the cake for longer storage, extending its freshness for up to 5 days. Wrap the cake tightly with plastic wrap or place it in an airtight container to prevent it from drying out.
  3. To freeze the Rhubarb Cake for future enjoyment, wrap individual slices or the whole cake tightly in plastic wrap and aluminum foil. Label with the date and store in the freezer for up to 3 months.
  4. When ready to enjoy frozen cake slices, thaw them in the refrigerator overnight or at room temperature for a few hours. Reheat briefly in the microwave or oven to restore their softness and revive the flavors before serving.

By following these serving and storage tips, you can ensure that your Rhubarb Cake with Butter Sauce remains fresh, delicious, and ready to delight your taste buds whenever the craving strikes.

Variations of Rhubarb Cake with Butter Sauce:

  1. Rhubarb Crumble Cake: Transform the classic Rhubarb Cake into a delightful crumble variation by adding a layer of buttery crumble topping. Mix together oats, flour, brown sugar, and cold butter until crumbly, then sprinkle it over the cake batter before baking. Serve warm with a drizzle of Butter Sauce for an irresistible dessert treat.
  2. Rhubarb Upside-Down Cake: Give the traditional Rhubarb Cake a twist by turning it into an upside-down cake. Arrange thinly sliced rhubarb on the bottom of a greased cake pan, sprinkle with brown sugar, and pour the cake batter over the top. Bake until golden and caramelized, then invert the cake onto a serving platter to reveal the beautiful rhubarb topping. Serve with a generous pour of warm Butter Sauce.
  3. Rhubarb Streusel Cake: Add extra texture and flavor to the Rhubarb Cake by incorporating a layer of sweet and crunchy streusel topping. Combine flour, brown sugar, cinnamon, and cold butter to create the streusel mixture, then sprinkle it over the cake batter before baking. The streusel will create a delicious contrast to the moist cake and pair perfectly with the indulgent Butter Sauce.
  4. Rhubarb Cream Cheese Cake: Elevate the Rhubarb Cake by adding a layer of tangy cream cheese filling. Prepare a simple cream cheese mixture by beating cream cheese, sugar, and vanilla until smooth, then spread it over the cake batter in the pan before adding the rhubarb and baking. The creamy filling will add richness and depth to the cake, making it a decadent dessert option for any occasion.
  5. Rhubarb Almond Cake: Infuse the Rhubarb Cake with the nutty flavor of almonds by incorporating almond flour or almond extract into the batter. Sprinkle sliced almonds over the top of the cake before baking for added crunch and visual appeal. Serve slices of this almond-infused cake with a drizzle of Butter Sauce for a luxurious dessert experience that’s sure to impress.

By experimenting with these variations, you can customize the Rhubarb Cake to suit your taste preferences and create unique desserts that are sure to delight your family and friends. Whether you opt for a crumble topping, cream cheese filling, or almond infusion, each variation promises to deliver a deliciously memorable treat that celebrates the vibrant flavors of rhubarb.


1. What is rhubarb?

  • Rhubarb is a perennial vegetable known for its long, thick, celery-like stalks and tart flavor. Despite its culinary use in desserts, rhubarb is botanically a vegetable, not a fruit.

2. Can I use frozen rhubarb for the cake?

  • Yes, frozen rhubarb can be used in the cake recipe. Thaw the rhubarb before adding it to the batter, and be sure to drain any excess liquid to prevent the cake from becoming too soggy.

3. How can I make the cake gluten-free?

  • To make the cake gluten-free, you can substitute the all-purpose flour with a gluten-free flour blend. Ensure the blend contains xanthan gum or add it separately to help bind the ingredients together.

4. Can I use a different fruit instead of rhubarb?

  • Yes, you can substitute rhubarb with other fruits like strawberries, apples, or peaches to create variations of the cake. Adjust the sugar quantity according to the sweetness of the chosen fruit.

5. How do I know when the cake is done baking?

  • The cake is done when a toothpick inserted into the center comes out clean and the top is golden brown. Avoid overbaking to maintain the cake’s moist texture.

6. Can I make the butter sauce ahead of time?

  • Yes, you can prepare the butter sauce ahead of time and store it in the refrigerator. Reheat it gently on the stove or in the microwave before serving with the cake.

7. Is it necessary to cool the cake before adding the butter sauce?

  • It’s best to let the cake cool slightly before adding the butter sauce to prevent it from melting too quickly. However, you can serve the sauce warm for a delicious contrast in temperature.

8. Can I reduce the amount of sugar in the cake recipe?

  • Yes, you can adjust the amount of sugar in the cake to suit your taste preferences. Keep in mind that reducing the sugar may affect the overall sweetness and texture of the cake.

9. How should I store leftovers of the cake?

  • Store leftover cake in an airtight container at room temperature for up to two days, or in the refrigerator for up to five days. Alternatively, you can freeze individual slices for longer storage.

10. Can I omit the butter sauce?

  • While the butter sauce adds richness and flavor to the cake, you can omit it if desired. Serve the cake with a dusting of powdered sugar or a scoop of vanilla ice cream instead.


With its tender crumb, vibrant rhubarb flavor, and decadent buttery sauce, our Rhubarb Cake with Butter Sauce is a dessert sensation that will impress any palate. Whether served as a sweet ending to a family dinner or as a special treat for gatherings with friends, this dessert is sure to become a favorite in your recipe collection. So why wait? Gather your ingredients and embark on a culinary journey filled with sweetness and satisfaction.

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