INGREDIENTS
1 cup
all-purpose flour (measured correctly)
1/2 tsp
baking powder
1/8 tsp
baking soda
1/2 tsp
salt
5 tbsp
or 75g) unsalted butter, melted
1 cup
light brown sugar, packed
1
large egg
1
egg yolk
1 tsp
vanilla extract
1/2 cup
Biscoff spread (or Trader Joe's Cookie Butter)
1
and 1/4 cups (225g) white chocolate chips