1. Prepare the Crust:

1. Bake the cake according to the package instructions and let it cool completely.
2. Crumble the cooled cake into fine crumbs in a large bowl. Mix in the vanilla frosting until well combined.
3. Roll the mixture into 1-inch balls and place them on a baking sheet lined with parchment paper. Chill for at least 1 hour.
4. Melt the white chocolate chips with vegetable oil in a microwave-safe bowl, stirring every 30 seconds until smooth.
5. Dip the tip of each lollipop stick into the melted chocolate, then insert into the chilled cake balls. Let set for 5 minutes.
6. Dip each cake pop into the melted chocolate, tapping off excess. Decorate with sprinkles if desired. Let dry upright in a styrofoam block or cake pop stand.