Preheat oven to 150°C.

Slice bread into small cubes.

Transfer them into a bowl.

Pour melted butter evenly on the cubes and sprinkle vanilla sugar.

Give a nice stir so that everything coats the cubes uniformly.

Transfer to a baking tray and place the cubes in a single layer.

Bake in the oven for 15-25 minutes until golden and crisp.

Cool and store in airtight box.