Super colorful and crazy fun.
That’s the best way to describe these rainbow sandwich cookies. They’re sugar cookies studded with marshmallows from a box of my childhood favorite cereal – Lucky Charms!
Cookies, magical marshmallows and frosting, OH MY! Rolling the dough in crushed Lucky Charms marshmallows makes the cookies pop with color. Sandwich 2 cookies together with a layer of fluffy frosting and you’ve got an over-the-top fun cookie! I tinted the frosting in rainbow colors to match the marshmallows. (P.S. Even the frosting is made with marshmallow creme!)
Lucky Charms Rainbow Sandwich Cookies
Cookies
1 1/2 cups marshmallows from Lucky Charms cereal
1 pouch Betty Crocker sugar cookie mix
Butter and egg called for on cookie mix pouch for drop cookies
Frosting
1 1/2 cups marshmallow creme
2/3 cup butter, softened
1 1/3 cup powdered sugar
Red, yellow, green and blue liquid food colors, if desired
Directions
Heat oven to 375°F. Line cookie sheet with parchment paper.
Place marshmallows in resealable food-storage plastic bag. Using rolling pin or wooden spoon, crush marshmallows into small pieces (but not powder). Pour into small bowl.
In medium bowl, stir together cookie mix, butter and egg until soft dough forms. Shape dough into 36 (1 1/4-inch) balls. Roll each ball in marshmallow pieces, pressing gently to get marshmallow pieces to stick. Place 2 inches apart on cookie sheet.
Bake 8 to 10 minutes or until set and light golden brown. Cool 2 minutes; remove from cookie sheet to cooling rack. Cool completely, about 30 minutes.
Meanwhile, in large bowl, beat marshmallow creme and 2/3 cup butter with electric mixer on medium speed until well blended. Beat in powdered sugar on low speed until fluffy and creamy. Divide frosting evenly into 6 small bowls. Add desired food color(s) to each to make rainbow colors.
For each cookie sandwich, spread desired color of frosting on bottom of 1 cookie. Top with second cookie, bottom side down; gently press cookies together.
Prep Time: 1 Hour | Total Time: 1 Hour 30 Minutes | Makes: 18 sandwich cookies
Feeling lucky? Feeling inspired? Check out these recipes:
- Lucky Charms White Russians from Brit + Co
- Lucky Rainbow Chex Mix from Tablespoon
- Lucky Charms Cake Pop from Paperplanes and Maryjanes
- White Chocolate Lucky Charms Treats from Sallys Baking Addiction
- Lucky Charms Blizzard from Sweet Treats and More