Mint Chocolate Chip Cookie Sandwiches

INGREDIENTS

3/4 cup

unsalted butter (melted)

3/4 cup

packed brown sugar

1/2 cup

sugar

large egg + 1 yolk (at room temperature)

1 tsp

vanilla extract

1 1/2 tsp

mint extract

dropsIn green food coloring

2 1/4 cups

flour

1 tsp

baking soda

1 tsp

cornstarch

2 cups

semi-sweet chocolate chips (divided)

4 oz

reduced-fat cream cheese (softened)

1/2 cup

butter (softened)

2 cups

powdered sugar

1 cup

mini semi-sweet chocolate chips