Homemade Cookie Dough Oreos

INGREDIENTS

1 cup

unsalted butter, melted and slightly cooled

3/4 cup

sugar

1 tsp

vanilla extract

8 oz

semisweet chocolate or chocolate chips, melted and slightly cooled

large egg

1 1/2 cups

all-purpose flour

3/4 cup

dark or Dutch-processed cocoa powder

1 tsp

kosher salt

1/2 tsp

baking soda

1/2 cup

unsalted butter, room temperature

3/4 cup

packed light brown sugar

1/2 cup

all-purpose flour

1/4 cup

milk or cream

1 tsp

vanilla extract

1/4 tsp

salt

1/2 cup

mini semisweet chocolate chips