Red velvet hearts - Legendary Recipes %

Ingredients

• 215g (1 cup) caster sugar
• 145g butter, at room temperature, chopped
• 2 eggs
• 2 teaspoons vanilla extract
• 2 teaspoons red gel food colouring, plus extra, to decorate
• 150g (1 cup) self-raising flour
• 75g (1/2 cup) plain flour
• 2 tablespoons cocoa powder
• 1/2 teaspoon bicarbonate of soda
• 185ml (3/4 cup) buttermilk
• 300g (2 cups) icing sugar mixture, sifted
• 2-3 tablespoons water, boiling