Black Velvet Cake - Moje wypieki

Ingredients

• 1 and 3/4 cups plain flour
• 1 1/2 cups caster sugar
• 3/4 cup cocoa powder
• 1,5 tsp bicarbonate of soda
• 1 1/2 tsp baking powder
• ½ tsp salt
• 1 cup buttermilk
• ½ cup (125 ml) rapeseed or sunflower oil
• 2 large eggs
• 1 tsp vanilla extract
• 1 cup freshly brewed hot coffee
• 420 g Philadelphia cream cheese, at room temperature
• 140 g butter, at room temperature
• 1 cup icing sugar
• 1 teaspoon vanilla extract or paste
• fresh blackberries