Stuffed Salted Triple Chocolate Chip Cookies

INGREDIENTS

1/2 cup

Nutella, cookie butter, or filling of your choice

1 cup

salted butter, room temperature

1/2 cup

granulated sugar

1 1/2 cups

packed dark brown sugar

large eggs

2 tsp

vanilla extract

12 oz

(about 2 3/4 cups) all-purpose flour

1/2 tsp

fine sea salt

1 tsp

baking soda

1 1/2 tsp

baking powder

1 cup

dark chocolate chips

3/4 cup

semi-sweet chocolate chips

1/2 cup

milk chocolate chips

flake sea salt (such as Maldon), for sprinkling