Step 1

Heat the oven to 190C/fan170C/gas 5 and line two baking sheets with non-stick baking paper.

Step 2

Put 150g softened salted butter, 80g light brown muscovado sugar and 80g granulated sugar into a bowl and beat until creamy.

Step 3

Beat in 2 tsp vanilla extract and 1 large egg.

Step 4

Sift 225g plain flour, ½ tsp bicarbonate of soda and ¼ tsp salt into the bowl and mix it in with a wooden spoon.

Step 5

Add 200g plain chocolate chips or chunks and stir well.

Step 6

Use a teaspoon to make small scoops of the mixture, spacing them well apart on the baking trays. This mixture should make about 30 cookies.

Step 7

Bake for 8–10 mins until they are light brown on the edges and still slightly soft in the centre if you press them.

Step 8

Leave on the tray for a couple of mins to set and then lift onto a cooling rack.