Preheat oven to 375 degrees F.
Line 2 sheet pans with parchment paper. Set aside.
In a large bowl, combine melted butter, granulated sugar, and brown sugar.
Stir until all the lumps of brown sugar are gone.
Whisk in eggs and vanilla.
Combine flour and baking powder.
Stir into butter mixture.
Fold in chocolate chips.
Use a cookie scoop or spoon to drop cookie dough onto prepared baking sheets.
Bake for 12 minutes, or until light brown.