Preheat the oven to 190C/170C fan/gas 5.

Cream the butter and sugar together until the mixture is light and fluffy - use either a wooden spoon or mixer

Add vainilla extract, flour and chocolate chips and mix until it forms a dough.

Roll the dough into walnut-sized balls and place them slightly apart from each other on a baking sheet and flatten them with the bottom of a glass or your hand.

Bake in the oven for around 10-12 mins until they are golden brown.

Leave the cookies on a cooling rack for around 15 mins before serving.