Preheat the oven to 350F/180C and line an 8x8" pan with grease-proof paper.

Cream the butter and sugar together until light and fluffy.

Add the eggs in one at a time with the vanilla extract and continue beating until combined.

Mix in the cocoa powder and red food colouring until your brownie batter is completely red. How much colouring you add is completely down to the brand and type of colouring you use.

Stir in the flour and salt until just combined then fold in the chocolate chips.

Spread the brownie batter into the lined pan and bake for around 30 minutes.

Leave to cool slightly on a wire rack if you're going to eat them 'naked', or leave them to cool completely if you're planning on frosting them.