This Rhubarb Pudding Cake is a nostalgic spring dessert that combines a tender, fluffy sponge with a tart, jammy fruit sauce that magically forms at the bottom of the pan while baking. It is the ultimate comfort food for rhubarb lovers, offering a delightful contrast between the acidic stalks and the sweet, buttery cake topping. Whether you are hosting a garden party or looking for a cozy weeknight treat, this self-saucing pudding cake is a guaranteed crowd-pleaser.
Why You Will Love This Recipe
There are so many reasons to fall in love with this Rhubarb Pudding Cake. First, it features a unique “self-saucing” technique where you pour boiling water over the batter, resulting in a thick, delicious rhubarb glaze underneath the cake layer. Second, it uses simple pantry staples and fresh seasonal produce, making it an accessible bake for any skill level. Finally, the balance of flavors is perfection; the brightness of the rhubarb cuts through the sweetness of the cake, creating a sophisticated yet rustic dessert experience.
Ingredients
- 4 cups fresh rhubarb, chopped into half-inch pieces
- 1 1/2 cups granulated sugar, divided
- 2 cups all-purpose flour
- 2 teaspoons baking powder
- 1/2 teaspoon salt
- 3/4 cup whole milk
- 1/4 cup unsalted butter, melted and cooled
- 1 teaspoon vanilla extract
- 1/2 teaspoon ground cinnamon
- 1 cup boiling water
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and lightly grease a 9×13 inch baking dish with butter or non-stick cooking spray.
- Spread the chopped rhubarb evenly across the bottom of the prepared baking dish and sprinkle with 1/2 cup of the granulated sugar.
- In a large mixing bowl, whisk together the all-purpose flour, another 1/2 cup of sugar, baking powder, and salt.
- Add the milk, melted butter, and vanilla extract to the dry ingredients, stirring until a thick batter forms.
- Drop spoonfuls of the batter over the rhubarb and spread it gently with a spatula to cover most of the fruit.
- In a small bowl, mix the remaining 1/2 cup of sugar with the ground cinnamon and sprinkle this mixture evenly over the top of the batter.
- Carefully pour the boiling water over the entire surface of the cake; do not stir the mixture, as the water is what creates the pudding sauce.
- Bake for 40 to 45 minutes, or until the cake is golden brown and the rhubarb sauce is bubbling around the edges.
- Remove from the oven and let it stand for 10 minutes before serving to allow the sauce to thicken slightly.
Expert Tips / Pro Tips
For the best results, choose rhubarb stalks that are firm and bright red, as these provide the most vibrant color for your sauce. When pouring the boiling water over the top, use the back of a spoon to break the stream so you don’t create a large hole in the batter. It is also vital not to overmix the batter; stir just until the flour is incorporated to ensure the cake stays light and airy rather than dense. If you find your rhubarb is particularly tart, you can increase the sugar sprinkled over the fruit by an extra quarter cup.
If you don’t have fresh rhubarb, you can easily use frozen rhubarb; just be sure to thaw it and drain any excess liquid before adding it to the pan. For a classic flavor twist, replace two cups of rhubarb with sliced strawberries to make a Strawberry Rhubarb Pudding Cake. You can also swap the vanilla extract for almond extract for a nutty aroma that pairs beautifully with stone fruits and rhubarb. For a gluten-free version, a high-quality 1:1 gluten-free flour blend works well in this specific recipe.
Serving Suggestions
This Rhubarb Pudding Cake is best served warm, shortly after it comes out of the oven. A generous scoop of high-quality vanilla bean ice cream is the classic accompaniment, as it melts into the warm rhubarb sauce. Alternatively, a dollop of lightly sweetened whipped cream or a drizzle of heavy pouring cream can add a luxurious richness. For a final touch of elegance, garnish the plate with a sprig of fresh mint or a light dusting of powdered sugar.
Store any leftover Rhubarb Pudding Cake in an airtight container in the refrigerator for up to three days. Because of the sauce consistency, this cake does not freeze well, as the texture of the pudding can become grainy upon thawing. To reheat, place individual portions in the microwave for 20-30 seconds or cover the baking dish with foil and warm it in a 300°F oven until the sauce begins to bubble again.
Nutrition Information
| Nutrient | Amount Per Serving |
|---|---|
| Calories | 285 kcal |
| Total Fat | 6g |
| Saturated Fat | 3.5g |
| Cholesterol | 15mg |
| Sodium | 180mg |
| Total Carbohydrates | 56g |
| Dietary Fiber | 2g |
| Sugars | 34g |
| Protein | 3g |
FAQ
Can I use frozen rhubarb for this cake?
Yes, frozen rhubarb works perfectly. Make sure to thaw it completely and pat it dry with paper towels to remove excess moisture before placing it in the baking dish.
Why is there water poured over the top of the batter?
The boiling water mixes with the sugar and the juices from the rhubarb during the baking process. This creates a “self-saucing” effect where the liquid sinks to the bottom and thickens into a delicious pudding-like sauce.
Is rhubarb poisonous?
Only the leaves of the rhubarb plant are toxic because they contain high levels of oxalic acid. The stalks, which are used in this recipe, are completely safe and delicious to eat.
Do I need to peel the rhubarb?
No, you do not need to peel rhubarb. Simply trim the ends, wash the stalks, and chop them into pieces. The skin softens beautifully during the baking process and provides great color.
Rhubarb Pudding Cake
Ingredients
Method
- Preheat your oven to 350°F (175°C) and lightly grease a 9×9 inch square baking dish.
- Spread the chopped rhubarb evenly across the bottom of the prepared baking dish and sprinkle with 1 cup of sugar.
- In a medium mixing bowl, whisk together the flour, 3/4 cup sugar, baking powder, and salt.
- Stir in the milk and melted butter until the batter is smooth, then spread it evenly over the rhubarb layer.
- In a small bowl, mix the remaining 1 cup sugar and cornstarch, then sprinkle this mixture over the batter.
- Carefully pour the boiling water over the entire surface of the cake; do not stir the mixture.
- Bake for 45 to 50 minutes until the cake is golden brown and the sauce is bubbling around the edges.
- Allow the cake to cool for 10 minutes before serving to let the pudding sauce thicken.