John Whaite make a delicious hidden heart cake for Valentine’s Day on Lorraine.

The ingredients for the pink hearts: 225g unsalted butter, at room temperature, 225g caster sugar, 4 large eggs, 225g self raising flour and Pink food colouring (gel or paste is best).

For the rest of the cake: 225g unsalted butter, at room temperature, 225g caster sugar, 4 large eggs and 225g self raising flour.

For the icing: 200g icing sugar, 1-2 tsp water and pink food colouring.