XXL Death by Chocolate Cookie

INGREDIENTS

2 tbsp

unsalted butter, softened to room temperature

2 tbsp

granulated sugar

2 tbsp

packed light brown sugar (or dark brown)

2 tbsp

beaten egg (crack an egg, beat it, and use 2 Tablespoons)

1/2 tsp

vanilla extract

1/4 cup

all-purpose flour (measured correctly)

2 tbsp

natural unsweetened cocoa powder

1/2 tsp

baking soda

1/4 tsp

salt

1/4 cup

dark chocolate chips + 1 Tablespoon, divided (or semi-sweet chocolate chips)

sprinkles, optional