One Bowl Chocolate Sheet Cake with Mixed Berry Filling and Vanilla Bean Swiss Meringue Buttercream

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One Bowl Chocolate Sheet Cake with Mixed Berry Filling and Vanilla Bean Swiss Meringue Buttercream Special Christmas

Ingredients

• One Bowl Chocolate Sheet Cake
• 250g all-purpose flour
• 250g granulated sugar
• 80g dutch process cocoa
• 2 tsp espresso powder
• 1/2 tsp salt
• 1 tsp baking soda
• 1 1/2 tsp baking powder
• 2 eggs
• 1 egg yolk
• 1 tsp vanilla bean paste
• 120g neutral oil
• 220g whole milk, at room temperature
• 200g boiling water

Mixed Berry Jam Filling

• 200g trimmed and diced strawberries
• 200g blackberries
• 200g raspberries
• 200g blueberries
• 1/2 tsp vanilla bean paste 
• pinch of salt 
• 350g granulated sugar
• Juice of half a lemon 

Vanilla Bean Swiss Meringue Buttercream 

• 250g egg whites
• 400g sugar
• 3/4 tsp salt
• 1 tsp vanilla bean paste
• 900g (8 sticks) unsalted butter, cold, cut into small cubes 

Instructions

1. Frist, Preheat the oven to 350°f / 180°c. Lightly spray a Texturra Performance Square Pan, 9x9 inch with baking spray and set aside. 
2. Next, In a large bowl, whisk together the flour, sugar, cocoa, espresso powder, salt, baking soda, and baking powder. 
3. Then Add the eggs, yolk, vanilla bean paste, oil, and milk, and mix to combine well. Add the boiling water and whisk until incorporated. 
4. Full Articel >> Here