Mini chocolate cakes

Bahan-bahan (7 porsi)

• 1 cup plain flour / all-purpose flour
• 1/3 cup cocoa (, sifted (unsweetened, not dutch processed - Note 1))
• 3/4 tsp baking powder
• 3/4 tsp baking soda / bi-carb ((Note 2))
• 1 cup white sugar
• 1/2 tsp cooking salt / kosher salt
• 1 large egg (, at room temperature)
• 1/2 cup milk (, preferably full fat, at room temperature)
• 1/4 cup plain oil (, like vegetable, canola, peanut oil)
• 1 tsp vanilla extract
• 1/2 cup boiling water
• 1 tsp instant coffee powder (, option (Note 3))
• 250 g / 1 cup unsalted butter (, softened)
• 4 cups soft icing sugar / powdered sugar (, sifted)
• 1/2 cup cocoa powder (, unsweetened)
• 1 tsp vanilla extract
• 5 tbsp milk (, preferably full fat)
• Dark chocolate (, finely shaved using a knife (white chocolate is also pretty))
• Raspberries, rosemary sprigs