Heat the oven to 190^C.

Put 5 oz softened salted butter, 3 oz light brown muscovado sugar and 3 oz granulated sugar into a bowl and beat until creamy.

Beat in 2 tsp vanilla extract and 1 egg.

Sift 8 oz plain flour, ½ tsp bicarbonate of soda and ¼ tsp salt into the bowl and mix it in with a wooden spoon.

Add Chocolate Chips.

Shape Biscuits with space for them to bake.

Bake for 10 minutes.

Leave on the tray to set for a couple of minutes then move to a plate to cool.