Beat cream cheese and butter together until smooth and creamy.

Add cake mix, powdered sugar and vanilla. Mix until well combined.

Gently fold in 1/2 cup of Fruity Pebbles.

Scoop mixture onto large piece of plastic wrap. Pull up corners of plastic wrap to help form a ball shape and wrap tightly.

Refrigerate for 1 hour until cheese ball is mostly firm.

Pour remaining Fruity Pebbles onto a large flat plate or low pan. Unwrap cheese ball and roll in Fruity Pebbles until covered completely.

Place cheese ball on a serving plate and cover in plastic wrap. Freeze for 1-2 hours. If freezing overnight, remove 30 minutes before serving.

Serve with assorted cookies and graham crackers.