Rhubarb & Custard Cake Recipe
Rhubarb & Custard Cake is a moist, tangy dessert blending sweet custard and tart rhubarb. The cake’s crumb layers a spiced rhubarb base with a custardy topping, served with warm Earl Grey-infused custard.
| Prep Time | 20 mins |
| Cook Time | 1 hr 15 mins |
| Total Time | 1 hr 35 mins |
| Servings | 10 |
| Difficulty | Medium |
| Cuisine | British / Home-style |
Why This Recipe Works: A Harmony of Tart and Creamy
Rhubarb & Custard Cake excels by balancing acidity and sweetness. The rhubarb’s tartness cuts through the custard’s richness, while the cake’s base acts as a sponge for the compote. Unlike typical coffees or custard sauces, this pairing is elevated by Earl Grey’s citrusy bergamot, which brightens the flavor. Tested in 2024, this cake remains a hit at gatherings for its interactive “hot custard trick.”
Pro kitchens often discard rhubarb stems during seasonal prep, but this recipe upcycles them into a key ingredient. The custard layer replaces traditional cream layers found in Middle Eastern()}
Ingredients
| Ingredient | Quantity | Notes |
|---|---|---|
| Unsalted butter | 175g softened | Use vegan alternative for dairy-free |
| Caster sugar | 175g + 2 tbsp | Sugar sprinkled on top |
| Forced rhubarb | 400g | Trim to 2cm pieces |
| Eggs | 3 medium | Room temperature |
| Sel-rising flour | 175g | Substitute plain flour |
| Custard powder | 65g + 35g | 35g for custard |
| Sea salt | ½ tsp | Balance sweetness |
| Soured cream | 100g | Low-fat dairy-free sour cream |
| Earl Grey custard | ½ tsp vanilla paste | Use maple syrup for healthier option |
| Milk | 568ml (2 cups) | Non-dairy milk works |
| Tea bags | 2 Earl Grey | Steep milk first |
Step-by-Step Instructions
- Preheat oven to 180°C / gas 4. Grease and base-line 20cm springform tin.
- Sprinkle 2 tbsp sugar over the base. Trim and arrange rhubarb in a single layer.
- Beat butter, 175g sugar for 3-4 mins until pale and fluffy.
- Add eggs one at a time, mixing fully after each addition.
- Sift in flour, custard powder, and salt. Fold gently into butter mixture.
- Stir in soured cream to achieve a smooth batter.
- Dollop batter onto rhubarb layer, spreading evenly. Tap tin to eliminate air bubbles.
- Bake 45-55 mins until golden and skewer shows slight residue. Cool completely in tin.
- Simmer milk with 2 Earl Grey tea bags and vanilla paste. Cool to room temp.
- Discard tea bags. Make custard per package instructions using 568ml tea-infused milk.
Prepare the Rhubarb
Make the Cake Batter
Bake the Cake
Create the Infused Custard
Chef Tips for Perfect Results
- Cool rhubarb completely before flipping: Hot custard would melt the cake’s texture
- Use room temperature ingredients: Enhances emulsification in the custard
- Custard powder-cut sugar ratio is critical: 35g/sugar balances tartness
- Time custard infusion: Steep 20 mins, not overnight to avoid bitterness
Common Mistakes to Avoid
- Overbaking: Cake must remain slightly moist. Check at 45 mins with toothpick.
- Skipping rhubarb sugar: Without it, custard layers will lava over instead of absorbing.
- Overmixing batter: This creates gluten, resulting in dense cake. Fold gently.
- Using ground cinnamon: Steams rhubarb acids, creating bitter aftertaste. Best left plain.
Variations and Substitutions
| Ingredient | Substitution | Impact on Flavor |
|---|---|---|
| Caster sugar | Maple syrup (¼ cup) | Less acidic aftertaste |
| Soured cream | Plain Greek yogurt | Thicker custard layers |
| Earl Grey | Vanilla custard | Loses aromatic citrus twist |
| Milk | Club soda | Earthy flavor from carbonation |
| Rhubarb | Chopped apple + squeeze of lemon | Metallic tartness replaced |
Serving Suggestions and Pairings
Pair with Earl Grey custard for classic impact, or vanilla bean custard for freshness. Serve on heirloom rosewater plates at afternoon tea events. For a 2024 twist, pre-drizzle plates with agave-infused cream before inverting.
Storage and Reheating
| Method | Duration | Instructions |
|---|---|---|
| Refrigerate | 3 days | Store in airtight container |
| Fridge reheat | 15 mins | Warm custard, don’t reheat cake cut |
Nutritional Information
| Nutrient | Amount per Serving |
|---|---|
| Calories | 250 |
| Protein | 3g |
| Fat | 12g |
| Carbs | 30g |
| Fiber | 1g |
| Added Sugar | 20g |
Frequently Asked Questions
Can I use dairy-free alternatives for runny eggs?
Use 3 tbsp milk (cow or non-dairy) for each egg. Whisk well before adding to batter.
What if my cake cracks while cooling?
Cracks are normal due to custard contraction. Ignore, or gently smooth with offset spatula.
Can I make the custard ahead of time?
Yes, but refrigerate and reheat within 24 hours to maintain consistency.
How to prevent rhubarb from burning on the tin bottom?
Scatter sugar before arranging rhubarb. Do not crowd rhubarb pieces.
What provides lift in this dense cake?
The soured cream reacts with the custard powder to leaven without baking powder.
Conclusion
Rhubarb & Custard Cake is a nostalgic yet refined dessert that transforms seasonal produce into something extra. With precise layering techniques and tea infusions, this recipe balances tradition and innovation. Try it as an unconventional finale to any meal.
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Rhubarb & Custard Cake
- Total Time: 95
- Yield: 10 servings
- Diet: Vegetarian
Description
A moist, tangy British cake blending spiced rhubarb with a custardy topping. Served with warm Earl Grey-infused custard, this dessert balances tart and creamy flavors perfectly.
Ingredients
Unsalted butter 175g (softened) – Use vegan alternative for dairy-free
Caster sugar 175g + 2 tbsp (sugar sprinkled on top)
Forced rhubarb 400g (trim to 2cm pieces)
Eggs 3 medium (room temperature)
Sel-rising flour 175g (substitute plain flour)
Custard powder 65g (for cake) + 35g (for custard)
Sea salt ½ tsp (balance sweetness)
Soured cream 100g (low-fat dairy-free sour cream)
Milk 568ml (2 cups) (non-dairy milk works)
Earl Grey tea bags 2 (steep milk first)
Vanilla paste ½ tsp (for custard) – Use maple syrup for healthier option
Instructions
Preheat oven to 180°C / gas 4. Grease and base-line 20cm springform tin
Sprinkle 2 tbsp sugar over tin base. Trim and arrange rhubarb in a single layer
Beat butter and 175g sugar for 3-4 mins until pale and fluffy
Add eggs one at a time, mixing fully after each addition
Sift in flour, 65g custard powder, and salt. Fold gently into butter mixture
Stir in soured cream to achieve a smooth batter
Dollop batter onto rhubarb layer, spreading evenly. Tap tin to eliminate air bubbles
Bake 45-55 mins until golden and skewer shows slight residue. Cool
Notes
Substitute maple syrup for vanilla paste for a lighter option
Use plain flour if sel-rising flour is unavailable
Serve with warm Earl Grey custard for the “hot custard trick”
- Prep Time: 20
- Cook Time: 75
- Category: Desserts
- Method: Baking
- Cuisine: British
