Mars Bar Flapjack slices

Mix flour, oats, sugar and bicarbonate of soda in a food processor until it looks like a crumble mix, but not too fine.

Add butter and egg to dry mixed ingredients and mix until completely incorporated.

Put 3/4 of the flapjack mix in a 22x33cm baking tray lined with baking parchment.

Melt the milk chocolate in a bain marie, or a bowl set over a pan of simmering water.

Spread the melted chocolate over the flapjack mix and refrigerate until set and hard

Warm the cream with the chopped Mars bars until melted. Whisk until creamy. Pour over the flapjack and hardened chocolate.

Crumble the remainder of the flapjack mix over the top evenly.

Bake for 25 minutes at Gas Mark 4/180°C or until golden brown.

Refrigerate for 2 hours to cool, and cut into 32 squares.