Naked gingerbread cake - Moje wypieki

Ingredients

• 150 ml milk
• 3 tablespoons molasses
• 225 ml rapeseed or sunflower oil
• 420 g plain flour
• 2½ teaspoons baking powder
• 1½ teaspoons bicarbonate of soda
• 280 g light muscovado sugar
• 1½ teaspoons ground cinnamon
• 1½ teaspoons ground ginger
• 3 large pinches ground cloves
• 300 ml buttermilk or kefir
• 3 large eggs
• 1 tablespoon rum
• 1½ teaspoons vanilla extract
• 130 g smooth peanut butter
• 500 g mascarpone, chilled
• 80 g icing sugar
• 4 tablespoons Amaretto, chilled