The night before needed, slice up 2 bananas, throw them into a freezer bag and freeze overnight.

When ready to make, get the glasses ready for serving and peel the plastic wrapper from 2 or 3 strawberry candy canes if using to decorate.

First make the white layer. Place the frozen banana slices, 150ml milk, 50g Greek yogurt and 1 tsp vanilla extract into a high speed blender.

Whizz together until smooth, then quickly tip into a clean bowl or jug.

Working quickly, place the frozen berries, 150ml milk, 50g Greek yogurt and honey or maple syrup into the blender (no need to wash it out).

Whizz together until smooth, then quickly tip into another clean bowl or jug.

Using two spoons, scoop spoonfuls of the two smoothie mixtures into the glasses in alternate layers.