In a bowl, beat together your sugars and butter
Add your vanilla extract and egg and beat again
Sift in your flour, baking powder, bicarbonate of soda and salt
Add your chopped chocolate/chocolate chips and pecans. Stir until combined
Sculpt your dough into 115g balls. The mixture should make 6-8 cookies
Pop your cookies in the freezer for half an hour (or the fridge for an hour). This will ensure they don't spread too much while baking!
Pre-heat your oven to 200℃ (or 180℃ if your oven is fan assisted)
Bake your cookies for 12-14 minutes. Once cooked, leave to cool for 30 minutes
Enjoy!