S'more Sandwich Cookies Recipe: How to Make It

Ingredients

• 3/4 cup butter, softened
• 1/2 cup sugar
• 1/2 cup packed brown sugar
• 1 large egg, room temperature
• 2 tablespoons 2% milk
• 1 teaspoon vanilla extract
• 1-1/4 cups all-purpose flour
• 1-1/4 cups graham cracker crumbs (about 20 squares)
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1/8 teaspoon ground cinnamon
• 2 cups semisweet chocolate chips
• 24 to 28 large marshmallows