INGREDIENTS
1 1/2 sticks
unsalted butter, melted
1/2 cup
+ 2 tbsp (120 g) brown sugar
1/3 cup
+ 1 tbsp (80 g) white/caster sugar
1
egg
1 tsp
vanilla paste ((or 2 tsp vanilla extract))
2 2/3 cups
plain gluten free flour blend ((I've used a simple store-bought blend of rice, potato and maize flour with no added xanthan gum))
1/2 tsp
xanthan gum
1 tsp
baking soda
1/2 tsp
(gluten free) baking powder
1/2 tsp
salt
5 oz
dark chocolate, chopped, divided