In a mixing bowl, use a hand mixer to beat 8 ounces of softened cream cheese until light and fluffy, about 2 minutes.

Gradually add in 1 box of dry yellow cake mix to the whipped cream cheese, mixing on low until well combined, roughly 1-2 minutes.

Scoop out about 1-inch portions of the dough and roll them into balls, placing each ball onto a baking sheet lined with parchment paper.

Cover the baking sheet with plastic wrap and refrigerate the cookie balls for about 1 hour, or until firm to the touch.

Roll each chilled cookie ball in powdered sugar until fully coated, then gently press a red or blue M&M into the center.