This cake ball recipe might just be my favorite. It has a cookie dough filling!
Cookie Dough Center
With a mixer blend butter and brown sugar until well combined. Gradually mix in flour alternating with the sweetened condensed milk. Beat well after each addition. Stir in chocolate chips. Shape into 1/4 to 1/2 teaspoon sized balls. Place on a baking sheet lined with parchment paper. Freeze until ready to use.
In a bowl, crumble the cake and mix in the frosting until combined.
Form this cake and frosting mixture around each cookie dough ball. Roll until smooth. Place back on cookie sheet and refrigerate while preparing candy coating.
In a double broiler over simmering water, melt candy coating. Roll the cake balls in the coating with a fork and place back onto baking sheet. Drizzle with extra coating. Garnish with cake sprinkles. Refrigerate till coating has hardened.