Ingredients

• 170g butter
• 200g brown sugar
• 100g white sugar
• 1 egg + 1 yolk
• 250g flour
• 200g dark chocolate
• 1 tsp vanilla

Method

1. 1

   Brown the butter and cool slightly.

2. 2

   Whisk in sugars, egg, yolk and vanilla.

3. 3

   Fold in flour and chopped chocolate.

4. 4

   Chill dough 30 minutes.

5. 5

   Bake at 180°C for 11-12 minutes.