To make sure your flour is sterile, you’ll need to heat it up before using it. Heat the oven to 200C/fan 180C/gas 4. Spread the flour out on a lined baking tray and bake for 5 mins, cool before using. The liner will help when you add the flour to your dough.

Beat the butter and sugar together, preferably in a mixer. Add the vanilla, 1/2 tsp salt and the cooked flour, then mix until it looks like breadcrumbs. Keep mixing as you add the milk until it comes together to form a dough. Eat as it is, or try one of these flavourings: Salted caramel dough: Add 1 tbsp dulce de leche, 1/2 tsp salt and a handful of dark chocolate chips to the dough and mix well. S'more cookie dough: Add 1 tbsp chocolate hazelnut spread, 2 crumbled digestive biscuits, and some mini marshmallows. Apple & cinnamon dough: Add some little chunks of dried apple and a sprinkle of cinnamon sugar (1 tsp cinnamon mixed with 1 tbsp soft brown sugar). Peanut heaven dough: Add 1 tbsp peanut butter and a handful of sugar-coated chocolate peanuts.