Homemade Cookies 'n Cream Oreos

INGREDIENTS

1/3 cup

Hershey’s Special Dark unsweetened cocoa powder (you can use regular unsweetened but they won’t be as “Oreo” like)

1/2 tsp

baking soda

1/4 tsp

salt

1 1/4 cups

all-purpose flour

1/2 cup

unsalted butter, softened

2/3 cup

brown sugar

1/4 cup

granulated sugar

1 tsp

vanilla

large egg

1/2 cup

unsalted butter

1/3 cup

marshmallow fluff

1/4 tsp

salt

1 1/4 cups

powdered sugar

1 tsp

vanilla extract

1 tbsp

heavy whipping cream, for consistency (you can also use milk)

of the baked and cooled cookies