Banana caramel layer cake | Women's Weekly Food

Ingredients

• 185 gram butter, softened
• 1 1/4 cup (275g) caster sugar
• 2 teaspoon vanilla extract
• 3 eggs
• 1 1/4 cup mashed banana
• 2 1/4 cup self-raising flour
• 1/2 tablespoon bicarbonate of soda (baking soda)
• 1/3 cup (80ml) milk
• 500 gram mascarpone cheese
• 1/2 cup (125ml) thickened cream
• 380 gram canned caramel top 'n' fill, chilled
• 1 large banana, sliced thinly
• 1 tablespoon boiling water