There’s something truly delightful about Warm Rhubarb Cake with Butter Sauce. This dish brings together the tangy flavor of rhubarb and the richness of butter sauce, making it perfect for any occasion—whether it’s a family gathering or a cozy night in. The cake is moist and tender, while the warm butter sauce adds an irresistible touch that will leave your guests asking for seconds.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Cake
- For the Butter Sauce
- For Garnish
- How to Make Warm Rhubarb Cake with Butter Sauce
- Step 1: Preheat the Oven
- Step 2: Prepare the Baking Pan
- Step 3: Combine Dry Ingredients
- Step 4: Mix Wet Ingredients
- Step 5: Combine Wet and Dry Mixtures
- Step 6: Add Rhubarb
- Step 7: Bake
- Step 8: Prepare Butter Sauce
- Step 9: Serve
- How to Serve Warm Rhubarb Cake with Butter Sauce
- A La Mode
- With Whipped Cream
- Drizzled with Extra Butter Sauce
- Accompanied by Fresh Fruits
- How to Perfect Warm Rhubarb Cake with Butter Sauce
- Best Side Dishes for Warm Rhubarb Cake with Butter Sauce
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Warm Rhubarb Cake with Butter Sauce
- Reheating Warm Rhubarb Cake with Butter Sauce
- Frequently Asked Questions
- Can I use frozen rhubarb in Warm Rhubarb Cake with Butter Sauce?
- How should I serve Warm Rhubarb Cake with Butter Sauce?
- How do I know when my Warm Rhubarb Cake is done baking?
- What variations can I try with this recipe?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Delicious Flavor: The combination of tart rhubarb and sweet butter sauce creates a delightful balance that tantalizes your taste buds.
- Easy to Make: With straightforward steps, this recipe is perfect for bakers of all skill levels.
- Perfect for Any Occasion: Whether it’s a spring picnic or a holiday dinner, this cake fits right in.
- Versatile Serving Options: Enjoy it warm with ice cream or at room temperature as a snack.
- Nostalgic Comfort Food: A heartwarming recipe that evokes memories of home and family gatherings.
Tools and Preparation
Before diving into the recipe, make sure you have the necessary tools on hand to make your baking experience smooth and enjoyable.
Essential Tools and Equipment
- Mixing bowls
- Measuring cups and spoons
- Baking pan
- Whisk or electric mixer
Importance of Each Tool
- Mixing bowls: Essential for combining ingredients thoroughly without spills.
- Measuring cups and spoons: Accurate measurements lead to consistent results in baking.
- Baking pan: A good-quality pan ensures even cooking and easy removal of your cake.
Ingredients
To make this delightful Warm Rhubarb Cake with Butter Sauce, gather the following ingredients:
For the Cake
- 4 cups plain flour
- 2 cups white sugar
- 4 teaspoons baking powder
- 1/2 teaspoon salt
- 4 cups rhubarb (cut into small pieces, see note on using frozen rhubarb)
- 2 cups milk
- 6 tablespoons melted butter
For the Butter Sauce
- 1/2 cup butter (equivalent to 1 stick)
- 1 cup granulated sugar
- 3/4 cup whipping cream
For Garnish
- 2 tablespoons fresh parsley, finely chopped

How to Make Warm Rhubarb Cake with Butter Sauce
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures that the cake bakes evenly.
Step 2: Prepare the Baking Pan
Grease a baking pan with butter or cooking spray. This prevents sticking when you remove the cake.
Step 3: Combine Dry Ingredients
In a mixing bowl, whisk together:
1. 4 cups plain flour
2. 2 cups white sugar
3. 4 teaspoons baking powder
4. 1/2 teaspoon salt
Make sure these are well combined for an even texture.
Step 4: Mix Wet Ingredients
In another bowl, combine:
1. 2 cups milk
2. 6 tablespoons melted butter
Stir until combined.
Step 5: Combine Wet and Dry Mixtures
Gradually add the wet mixture to the dry mixture. Stir until just combined; be careful not to overmix.
Step 6: Add Rhubarb
Fold in the 4 cups of rhubarb. Ensure it is evenly distributed throughout the batter.
Step 7: Bake
Pour the batter into your prepared baking pan. Bake in your preheated oven for about 45 minutes or until golden brown and a toothpick comes out clean.
Step 8: Prepare Butter Sauce
While the cake is baking, combine:
1. In a saucepan over medium heat, melt 1/2 cup butter.
2. Add 1 cup granulated sugar, stirring until dissolved.
3. Slowly whisk in 3/4 cup whipping cream. Allow it to simmer for a few minutes until slightly thickened.
Step 9: Serve
Once baked, let your Warm Rhubarb Cake cool slightly before serving it warm drizzled with your rich butter sauce. Enjoy!
How to Serve Warm Rhubarb Cake with Butter Sauce
Serving Warm Rhubarb Cake with Butter Sauce is a delightful experience that brings out the cake’s sweet and tangy flavors. Here are some creative ideas for serving this delicious dessert.
A La Mode
- Serve warm slices of rhubarb cake topped with a scoop of vanilla ice cream. The creaminess complements the tartness perfectly.
With Whipped Cream
- Add a dollop of freshly whipped cream on top of each slice. This adds a light and airy texture that enhances the overall dessert.
Drizzled with Extra Butter Sauce
- For those who love rich flavors, drizzling extra butter sauce over the cake can elevate your dessert experience to new heights.
Accompanied by Fresh Fruits
- Pair the cake with fresh berries or sliced strawberries. The freshness balances the sweetness and tartness of the rhubarb.
How to Perfect Warm Rhubarb Cake with Butter Sauce
To ensure your Warm Rhubarb Cake with Butter Sauce turns out perfectly, consider these helpful tips:
- Use Fresh Rhubarb: Fresh rhubarb gives your cake a vibrant flavor and texture. If using frozen, make sure to thaw and drain excess moisture.
- Measure Ingredients Accurately: Precision in measuring flour and sugar is key for achieving the right consistency in your batter.
- Preheat Your Oven: Always preheat your oven before baking. This helps to ensure even baking and prevents undercooked areas in your cake.
- Check for Doneness: Use a toothpick to check if the cake is done. It should come out clean from the center when fully baked.

Best Side Dishes for Warm Rhubarb Cake with Butter Sauce
Pairing side dishes with your Warm Rhubarb Cake can enhance its flavors and create a well-rounded meal. Here are some great options that complement this dessert beautifully.
- Vanilla Ice Cream: The classic choice that adds creaminess and balances the tartness of the cake.
- Fruit Salad: A refreshing mix of seasonal fruits provides contrast to the warm cake.
- Greek Yogurt: A spoonful of tangy Greek yogurt adds a creamy texture that pairs well with sweet desserts.
- Spiced Nuts: Crunchy nuts tossed in cinnamon or nutmeg offer a delightful crunch alongside soft cake.
- Chocolate Mousse: Rich chocolate mousse creates an indulgent combination when served next to rhubarb’s tart flavor.
- Tea or Coffee: A warm cup of tea or coffee makes for a comforting beverage pairing with this dessert.
Common Mistakes to Avoid
When making your Warm Rhubarb Cake with Butter Sauce, it’s easy to make a few common mistakes. Here are some pitfalls to watch out for:
- Using Too Much Flour: Measuring flour incorrectly can lead to a dense cake. Always spoon the flour into the measuring cup and level it off with a knife.
- Not Preparing the Rhubarb Properly: If you don’t cut rhubarb into small pieces, it won’t cook evenly. Make sure to chop it into uniform 1-inch pieces for the best texture.
- Skipping the Rest Time: Letting the batter rest before baking can enhance flavor and texture. Don’t rush this step; give it at least 10 minutes.
- Overbaking the Cake: Every oven is different. Start checking for doneness a few minutes before the recommended time to avoid a dry cake.
- Neglecting to Use Fresh Ingredients: Using stale baking powder or old butter can affect your cake’s rise and flavor. Always use fresh ingredients for the best results.
Storage & Reheating Instructions
Refrigerator Storage
- Store your Warm Rhubarb Cake with Butter Sauce in an airtight container.
- It will last for up to 3 days in the fridge.
- Be sure to let it cool completely before sealing to avoid moisture buildup.
Freezing Warm Rhubarb Cake with Butter Sauce
- Wrap individual slices or the whole cake tightly in plastic wrap.
- Place it in a freezer-safe container or bag.
- The cake can be frozen for up to 3 months.
Reheating Warm Rhubarb Cake with Butter Sauce
- Oven: Preheat your oven to 350°F (175°C). Place the cake in a baking dish and cover with foil. Heat for about 15-20 minutes until warmed through.
- Microwave: Cut a slice and place it on a microwave-safe plate. Heat on high for 30-45 seconds, checking until warm.
- Stovetop: Place a slice in a non-stick skillet over low heat. Cover and warm for about 5 minutes, turning once.

Frequently Asked Questions
Can I use frozen rhubarb in Warm Rhubarb Cake with Butter Sauce?
Yes, you can use frozen rhubarb! Just ensure it’s thawed and drained of excess moisture before adding it to your batter.
How should I serve Warm Rhubarb Cake with Butter Sauce?
This cake is delightful served warm with butter sauce drizzled on top. You can also add whipped cream or vanilla ice cream for extra indulgence.
How do I know when my Warm Rhubarb Cake is done baking?
Check for doneness by inserting a toothpick into the center of the cake. It should come out clean or with just a few moist crumbs attached.
What variations can I try with this recipe?
Feel free to customize your cake by adding spices like cinnamon or nutmeg, or mix in other fruits such as strawberries or apples for added flavor!
Final Thoughts
Warm Rhubarb Cake with Butter Sauce is not just delicious; it’s also versatile and perfect for any gathering. Whether enjoyed plain or customized with additional flavors, this recipe captures the essence of springtime nostalgia. Give it a try, and explore different toppings and mix-ins that suit your taste!
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Warm Rhubarb Cake with Butter Sauce
- Total Time: 1 hour 5 minutes
- Yield: Serves approximately 12 1x
Description
Warm Rhubarb Cake with Butter Sauce is a delightful dessert that perfectly marries the tartness of fresh rhubarb with a rich, buttery sauce. This moist and tender cake is not only easy to make but also versatile enough for any occasion, from casual family dinners to celebratory gatherings. The warm butter sauce drizzled over each slice adds an irresistible touch, making this cake a sure hit with family and friends. Serve it warm or at room temperature, with options like vanilla ice cream or whipped cream to elevate the experience. Relish in the nostalgia of home-baked goodness with this heartwarming recipe.
Ingredients
- 4 cups plain flour
- 2 cups white sugar
- 4 teaspoons baking powder
- 1/2 teaspoon salt
- 4 cups rhubarb, cut into small pieces
- 2 cups milk
- 6 tablespoons melted butter
- 1/2 cup butter for sauce
- 1 cup granulated sugar for sauce
- 3/4 cup whipping cream for sauce
Instructions
- Preheat the oven to 350°F (175°C).
- Grease a baking pan with butter or cooking spray.
- In a mixing bowl, whisk together flour, sugar, baking powder, and salt.
- In another bowl, combine milk and melted butter until smooth.
- Gradually add the wet mixture to dry ingredients; stir until just combined.
- Fold in chopped rhubarb.
- Pour batter into the prepared pan and bake for about 45 minutes or until golden brown and a toothpick comes out clean.
- For the butter sauce, melt butter in a saucepan over medium heat, add sugar until dissolved, then whisk in cream and simmer until thickened.
- Serve warm cake drizzled with butter sauce.
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 350
- Sugar: 30g
- Sodium: 120mg
- Fat: 18g
- Saturated Fat: 11g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 40mg