Mini S’mores Sandwich Cookies

Preheat oven to 350ºF.

Using an electric mixer, combine butter, sugar, egg yolk, and vanilla. Mix flour and salt together in a separate bowl and add the mixture to the wet ingredients, little by little, stirring until incorporated and the dough begins to firm up.

Take 1 teaspoon of dough and form into little balls. Place balls on a lined baking sheet. Press each ball down with your palm or the bottom of a glass. Bake for about 8–10 minutes. Let the cookies cool on a baking rack.

While the cookies are baking, combine the marshmallow cream and cream cheese in a bowl using an electric mixer. When the cookies are cool, spread a dollop of marshmallow frosting on half of the cookies. Top each frosted cookie with another cookie to make a sandwich.

Roll the frosting-exposed portion of each cookie sandwich in a bowl of mini chocolate chips.