Mary Berry Rhubarb Cake is a comforting dessert that highlights the sweet-tart flavor of rhubarb in a soft, buttery sponge. The recipe keeps the ingredients simple and the method straightforward, making it perfect for home bakers. As the cake bakes, the rhubarb softens and blends into the sponge, creating pockets of gentle tartness that balance the sweetness of the cake.
The finished cake has a tender crumb, a lightly golden top, and a delicate fruit flavor throughout. It works beautifully as a teatime cake, a simple dessert, or a weekend bake served with cream or custard.
What is Mary Berry’s Rhubarb Cake?
Mary Berry Rhubarb Cake is a traditional British-style sponge cake made with fresh rhubarb pieces folded into a buttery cake batter. The cake is baked until light and golden, allowing the rhubarb to soften and release its natural tartness.
Unlike dense fruit cakes, this recipe produces a light and airy sponge that complements the rhubarb perfectly. The fruit provides moisture and flavor while the cake remains soft and tender.
This type of cake is often served warm or at room temperature and pairs wonderfully with whipped cream, custard, or a light dusting of icing sugar.

Try Other Mary Berry Recipes
Gather These Fresh Ingredients for Mary Berry Rhubarb Cake
Fruit
- Fresh rhubarb (300 g, chopped) – Adds tart flavor and moisture to the cake.
Cake Batter
- Self-raising flour (225 g) – Provides structure and helps the cake rise.
- Butter (175 g, softened) – Creates a rich and tender crumb.
- Caster sugar (175 g) – Sweetens the cake and balances the rhubarb.
- Eggs (3 large) – Help bind the batter and create a light texture.
- Milk (2 tablespoons) – Helps achieve a smooth batter.
Flavoring
- Vanilla extract (1 teaspoon) – Adds gentle sweetness and aroma.
Optional Topping
- Demerara sugar (1 tablespoon) – Adds a light crunchy topping.
Detailed Step-by-Step Instructions to Make Mary Berry Rhubarb Cake
Step 1 – Prepare the Oven
Preheat the oven to 180°C (350°F). Grease and line a round cake tin with parchment paper.
Step 2 – Cream Butter and Sugar
Place the softened butter and caster sugar in a mixing bowl. Beat together until the mixture becomes pale and fluffy.
Step 3 – Add the Eggs
Add the eggs one at a time, mixing well after each addition to maintain a smooth batter.
Step 4 – Add Dry Ingredients
Sift the self-raising flour into the bowl and gently fold it into the mixture.
Step 5 – Add Milk and Vanilla
Stir in the milk and vanilla extract to create a soft, smooth batter.
Step 6 – Fold in the Rhubarb
Gently fold the chopped rhubarb pieces into the batter so they are evenly distributed.
Step 7 – Transfer to the Cake Tin
Pour the batter into the prepared cake tin and spread it evenly. Sprinkle demerara sugar over the top if using.
Step 8 – Bake the Cake
Bake in the preheated oven for 40–45 minutes until the cake is golden and a skewer inserted in the center comes out clean.
Step 9 – Cool and Serve
Allow the cake to cool in the tin for about 10 minutes before transferring it to a wire rack to cool completely.

Common Mistakes and How I Fixed Them
- Using too much rhubarb – Excess fruit made the cake heavy. Measuring the fruit carefully keeps the texture light.
- Adding eggs too quickly – The mixture can split. Adding them gradually helps maintain a smooth batter.
- Overmixing the batter – This can make the cake dense. Folding gently keeps the sponge soft.
- Baking at too high a temperature – A moderate oven temperature ensures even baking.
What Pairs Perfectly with Mary Berry Rhubarb Cake
- Whipped Cream – Light cream complements the tartness of rhubarb beautifully.
- Vanilla Custard – Warm custard turns the cake into a comforting dessert.
- Vanilla Ice Cream – Cold ice cream contrasts nicely with the soft cake.
- Fresh Strawberries – Strawberries add extra sweetness and color.
- Hot Tea or Coffee – A classic pairing for afternoon baking.
Pro Tips for Making Mary Berry Rhubarb Cake
- Use fresh rhubarb – Fresh stalks provide the best flavor and texture.
- Cut rhubarb evenly – Even pieces distribute better in the cake.
- Cream butter and sugar properly – This step creates a lighter sponge.
- Fold ingredients gently – Prevents overworking the batter.
- Check the cake near the end of baking – Oven temperatures can vary.
- Allow the cake to cool slightly before slicing – This helps it hold shape.
Inspiring Variations of Mary Berry Rhubarb Cake
- Rhubarb and strawberry cake – Add chopped strawberries for extra sweetness.
- Almond rhubarb cake – Add ground almonds to the batter for nutty flavor.
- Spiced rhubarb cake – Include cinnamon or ginger for warmth.
- Rhubarb crumble cake – Add a crumble topping before baking.
- Orange rhubarb cake – Add orange zest for citrus brightness.
How to Store Mary Berry Rhubarb Cake Properly
- Room temperature storage – Store the cake in an airtight container for up to 2 days.
- Refrigeration option – Refrigerate if storing longer than two days.
- Freeze slices individually – Cake can be frozen for up to 2 months.
Smart Reheating Tips for Mary Berry Rhubarb Cake
- Oven reheating – Warm slices at 160°C for about 5 minutes.
- Microwave option – Heat briefly for a softer texture.
- Serve slightly warm – Warm cake pairs beautifully with cream or custard.
Mary Berry Rhubarb Cake
Mary Berry Rhubarb Cake is a traditional British-style sponge cake made with fresh rhubarb pieces folded into a buttery cake batter. The cake is baked until light and golden, allowing the rhubarb to soften and release its natural tartness.
- Prep Time: 15
- Cook Time: 45
- Total Time: 1 hour
- Yield: 8
- Category: Cake
- Method: Baking
- Cuisine: British
Ingredients
Fruit
-
Fresh rhubarb (300 g, chopped) – Adds tart flavor and moisture to the cake.
Cake Batter
-
Self-raising flour (225 g) – Provides structure and helps the cake rise.
-
Butter (175 g, softened) – Creates a rich and tender crumb.
-
Caster sugar (175 g) – Sweetens the cake and balances the rhubarb.
-
Eggs (3 large) – Help bind the batter and create a light texture.
-
Milk (2 tablespoons) – Helps achieve a smooth batter.
Flavoring
-
Vanilla extract (1 teaspoon) – Adds gentle sweetness and aroma.
Optional Topping
-
Demerara sugar (1 tablespoon) – Adds a light, crunchy topping.
Instructions
Preheat the oven to 180°C (350°F). Grease and line a round cake tin with parchment paper.
Place the softened butter and caster sugar in a mixing bowl. Beat together until the mixture becomes pale and fluffy.
Add the eggs one at a time, mixing well after each addition to maintain a smooth batter.
Sift the self-raising flour into the bowl and gently fold it into the mixture.
Stir in the milk and vanilla extract to create a soft, smooth batter.
Gently fold the chopped rhubarb pieces into the batter so they are evenly distributed.
Pour the batter into the prepared cake tin and spread it evenly. Sprinkle demerara sugar over the top if using.
Bake in the preheated oven for 40–45 minutes until the cake is golden and a skewer inserted in the center comes out clean.
Allow the cake to cool in the tin for about 10 minutes before transferring it to a wire rack to cool completely.
FAQs
Do I need to cook rhubarb before adding it to the cake?
No, fresh rhubarb can be added directly to the cake batter. It softens naturally while the cake bakes.
Why is my rhubarb cake too wet?
Using too much rhubarb or cutting very large pieces can release excess moisture. Using measured amounts helps maintain the right texture.
Can frozen rhubarb be used in rhubarb cake?
Yes, frozen rhubarb can be used if thawed and drained before adding to the batter.
How do I know when the rhubarb cake is fully baked?
Insert a skewer into the center of the cake. If it comes out clean, the cake is ready.
Nutritional Value
- Calories: ~260 kcal
- Protein: ~5 g
- Carbohydrates: ~32 g
- Fat: ~12 g
- Fiber: ~2 g
- Sugar: ~20 g
Conclusion
Mary Berry Rhubarb Cake is a simple and comforting bake that highlights the natural tartness of rhubarb in a soft sponge. The buttery cake and tender fruit create a balanced dessert that feels both traditional and satisfying.
