Description
Homemade swirled blackberry lavender sheet cake combines delicate floral notes with rich berry flavors. Sweet lavender-infused batter creates elegant purple marbling alongside intense blackberry swirls, delivering a sophisticated dessert perfect for summer gatherings.
Ingredients
Scale
- 2 cups (480 ml) all-purpose flour
- 1 large cup (200 g) granulated sugar
- 8 oz (226 g) white chocolate
- 1 cup (226 g) unsalted butter
- 1 cup (226 g) unsalted butter (for frosting)
- 4 cups (454 g) powdered sugar
- 2 large eggs
- ½ cup (120 ml) whole milk
- 2 cups (300 g) fresh blackberries
- 2 tbsps lavender buds
- ¼ cup (50 g) granulated sugar (for jam)
- 2 tsps baking powder
- ½ tsp salt
- 2 tsps vanilla extract
- 1 tbsp (15 ml) heavy cream
- ¼ tsp lavender extract
Instructions
- Reduction Preparation: Simmer fresh blackberries with honey, lemon juice, and lavender buds in a medium pot until the mixture thickens and reduces by one-third. Allow the compote to cool and set, concentrating its vibrant flavors.
- Oven Preparation: Line a 9×13 inch pan with parchment paper and preheat the oven to 350°F, creating an optimal baking environment.
- Batter Creation: Whisk together coconut oil, sour cream, eggs, sugar, and vanilla extract in a large mixing bowl until smooth. Gradually fold in flour, baking soda, baking powder, and sea salt, then incorporate milk to form a silky, lump-free batter.
- Cake Assembly: Pour the batter into the prepared pan, spreading evenly. Artfully dollop the cooled blackberry lavender reduction across the surface, using a knife to create elegant swirling patterns.
- Baking Process: Bake for 30-35 minutes until the surface turns golden and a toothpick inserted comes out clean. Allow the cake to cool completely, letting the texture settle and flavors meld.
- Frosting Technique: Whip butter and powdered sugar until light and fluffy, then fold in melted white chocolate and vanilla. Spread a thin layer of reserved berry reduction across the cake’s surface.
- Final Decoration: Frost the cake generously, creating decorative swirls by incorporating additional berry compote into the white frosting. Slice and serve, showcasing the beautiful lavender-infused blackberry swirls within the tender cake.
Notes
- Master Batter Consistency: Gently fold dry ingredients to maintain delicate cake texture, avoiding overmixing which can create tough, dense results.
- Temperature Precision: Allow ingredients like eggs and sour cream to reach room temperature for smoother blending and more even baking performance.
- Berry Reduction Success: Simmer compote slowly to concentrate flavors and achieve perfect thick, glossy consistency without burning.
- Swirling Technique: Use light knife strokes when creating berry patterns to ensure beautiful marbled effect without completely mixing the reduction into batter.
- Prep Time: 25 minutes
- Cook Time: 35 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 13
- Calories: 425
- Sugar: 45 g
- Sodium: 150 mg
- Fat: 22 g
- Saturated Fat: 14 g
- Unsaturated Fat: 8 g
- Trans Fat: 0 g
- Carbohydrates: 56 g
- Fiber: 1 g
- Protein: 4 g
- Cholesterol: 70 mg