Rhubarb & Elderflower Cake is a vibrant, floral-infused dessert that balances tangy rhubarb with bright elderflower notes, baked into a tender, aromatic sponge. Perfect for spring or summer, this cake highlights the unique harmony of these two ingredients in a rich, crumbly texture.
| Prep Time | 35 minutes |
|---|---|
| Cook Time | 35 minutes |
| Total Time | 1 hour 10 minutes |
| Servings | 10-12 |
| Difficulty | Intermediate |
| Cuisine | Modern British |
Why This Recipe Works
Rhubarb & Elderflower Cake thrives on the interplay of its ingredients. Roasted rhubarb caramelize into tender ribbons with a syrupy base that infuses the sponge without excess sweetness. Elderflower cordial bridges the tart and floral profiles, creating a cake that’s both refreshing and indulgent.
Ingredients
| Ingredient | Quantity | Notes |
|---|---|---|
| Rhubarb | 1 pound, cut into 1-1.5 inch batons | Look for firm, ruby-red stalks |
| Sugar | ¾ cup + ½ cup | Use white sugar for balance; turbinado adds texture |
| Vanilla Bean | 1, split and scraped | Real vanilla enhances depth; substitute extract if needed |
| Orange Juice | ¼ cup | Avoid bottled, use freshly squeezed |
| Elderflower Cordial | 2 tbsp + 1 tbsp + 2 tbsp | Critical for flavor; use pure cordial not syrup |
| Vegetable Oil | ½ cup | Canola or sunflower oil for neutrality |
| Butter | ¼ cup, melted | Use unsalted, ensure melted but not hot |
| Eggs | 3 large, room temp | Room temperature ensures even emulsification |
| Creme Fraiche | ½ cup + ¼ cup | Optional: substitute yogurt for tang |
| Flour | ¾ cup almond + ¾ cup AP | Gluten-free blend works; add xanthan gum |
Step-by-Step Instructions
Rhubarb Roasting
- Prep rhubarb by cutting into 1-1.5 inch batons
- Combine sugar, vanilla seeds, orange juice, and 2 tbsp elderflower cordial in a bowl
- Toss ingredients in baking dish, rest 60 minutes for juice release
- Roast at 350°F for 20 minutes, toss once, then cool 15 minutes
Cake Preparation
- Preheat oven to 350°F, prep two 8-inch pans with butter and parchment
- Sift dry ingredients: almond flour, AP flour, baking powder, soda, salt
- Whisk wet ingredients: oil, melted butter, ¾ cup sugar, vanilla extract
- Incorporate eggs individually, then add ½ cup creme fraiche
- Fold in dry ingredients until smooth
- Divide batter, top each with ¼ cup rhubarb, bake 30 minutes
Whipped Cream Assembly
- Whip cream, powdered sugar, and 2 tbsp elderflower cordial
- Prick cake layers with a skewer, brush with elderflower cordial
- Layer first cake, add half the cream and rhubarb compote
- Top with second cake, remaining cream, rhubarb, and poaching liquid
Chef Tips for Perfect Results
- Toast almond flour briefly: Use low heat to prevent bitterness
- Rest batter 20 minutes: Allows gluten relaxation for finer texture
- Use room-temperature eggs: Ensures thorough emulsification
- Cool completely before assembling: Prevents sinking/soggy layers
- Brush with cordial: Adds hydration, prevents dry layers
Common Mistakes to Avoid
- Over-roasting rhubarb: Causes breakage in cake layers; check texture
- Omitting creme fraiche: Skimps on tanginess that balances sweetness
- Skimping on dry ingredients: Affects structure and airiness
- Baking at incorrect temp: Too high leads to dry edges; too low = dense center
- Rushing assembly: Warm layers create weeping filling
Variations and Substitutions
| Ingredient | Substitution | Impact on Flavor |
|---|---|---|
| Rhubarb | Sweet cherries | More naturally sweet, adjust sugar |
| Elderflower | Orange blossom water | Citrusy floral notes |
| Almond flour | Coconut flour | Less dense, may require egg whites |
| Butter | Coconut oil | Slight coconut undertone |
Serving Suggestions and Pairings
Serve at room temperature for peak flavor. Pair with Earl Grey tea to complement floral notes. For summer gardens, garnish with fresh elderflowers. Add to brunch tables with fresh berries. Great for Mother’s Day afternoons. Can be sliced on boardwalks for picnics.
Storage and Reheating
| Method | Duration | Instructions |
|---|---|---|
| Refrigerated | 3 days | Store whole cake in airtight container |
| Frozen | 3 months | Freeze layered slices in parchment |
| Reheat | 10-12 minutes | Toaster oven at 300°F, avoid direct heat on cream |
Nutritional Information
| Nutrient | Amount per Serving |
|---|---|
| Calories | Approx. 320 |
| Protein | 4g |
| Fat | 18g |
| Carbohydrates | 35g |
| Fiber | 2g |
| Sugar | 24g |
| Sodium | 200mg |
Frequently Asked Questions
Can I use fresh elderflowers instead of cordial?
Elderflowers must be organic and properly dried. Use 1 tbsp per 2 tbsp cordial; steep in warm water first.
Is the cake underbaked if centers sink?
Yes: Check oven temp with a thermometer. Cakes should spring back gently and not sink within 5 minutes.
Can I substitute orange juice with another acid?
Use white grape juice with ½ tsp lemon juice instead. Avoid tart juices like lime.
How to store leftover rhubarb syrup?
Sealed glass jar in fridge for 2 weeks. Perfect for cocktails or drizzle over oatmeal.
Can I make cake ahead of time?
Bake and assemble up to 24 hours in advance. Cover with damp cloth to avoid drying.
Conclusion
Rhubarb & Elderflower Cake is a celebration of spring’s fleeting ingredients. With balanced sweetness, floral brightness, and a tender crumb, it’s perfect for tea parties or quiet mornings. Experiment with garnishes from your garden, and let the rhubarb’s tang spark joy in every bite.
Print
Rhubarb & Elderflower Cake
- Total Time: 70
- Yield: 10-12 servings 1x
- Diet: Vegetarian
Description
A tender, floral-infused sponge cake blending rosy rhubarb with aromatic elderflower notes. The tangy fruit and bright syrup create a crumbly, aromatic dessert best served at room temperature for spring or summer gatherings.
Ingredients
1 pound rhubarb, cut into 1–1.5 inch batons
¾ cup + ½ cup sugar
1 vanilla bean, split and scraped
¼ cup orange juice, freshly squeezed
2 tbsp + 1 tbsp + 2 tbsp non-alcoholic elderflower syrup
½ cup vegetable oil (canola or sunflower)
¼ cup unsalted butter, melted
3 large eggs, room temperature
½ cup + ¼ cup crème fraîche
¾ cup almond flour
¾ cup all-purpose flour (gluten-free option allowed with xanthan gum)
1 teaspoon baking powder
½ teaspoon baking soda
¼ teaspoon salt
Instructions
Cut rhubarb into 1-1.5 inch batons
Combine sugar, vanilla seeds, orange juice, and 2 tbsp elderflower syrup in a bowl
Toss rhubarb and rest 60 minutes
Roast at 350°F for 20 minutes, toss once, then cool 15 minutes
Preheat oven to 350°F and butter/grease two 8-inch cake pans with parchment
Sift almond flour, all-purpose flour, baking powder, baking soda, and salt in a bowl
Whisk oil, melted butter, ¾ cup sugar, and vanilla extract until emulsified
Add eggs one at a time, then mix in ½ cup crème fraîche
Fold in dry ingredients until smooth
Divide batter into pans, top each with ¼ cup rhubarb, and bake 30 minutes
Let cool 15 minutes before serving
Notes
Use room-temperature eggs for smooth emulsification
Substitute ¾ cup plain yogurt if crème fraîche is unavailable
Rhubarb can be mixed into the batter instead of layered before baking
For gluten-free, use certified gluten-free flour blends with xanthan gum added
Store in airtight container at room temperature for up to 2 days
- Prep Time: 35
- Cook Time: 35
- Category: Desserts
- Method: Baking
- Cuisine: Modern British
Nutrition
- Serving Size: 1 slice (of 12)
- Calories: 230
- Sugar: 12g
- Sodium: 90mg
- Fat: 10g
- Saturated Fat: 3g
- Carbohydrates: 25g
- Fiber: 0.8g
- Protein: 3g
- Cholesterol: 30mg
