Chocolate Pizza

3 cups vanilla chips, divided
2 cups semisweet chocolate chips
12 cups mini marshmallows
1 cup crisp rice cereal
1 cup chopped walnuts
1/2 cup halved maraschino cherries, patted dry
1/4 cup flaked coconut
1 tsp. vegetable oil

Directions:

In a microwave-safe bowl, combine the 2 1/2 cups vanilla chips and the chocolate chips. Microwave on high for 2 minutes; stir. Microwave for 1-2 minutes; stir until smooth. Immediately add marshmallows, cereal and walnuts; mix well. Spread evenly in a 13 inch pizza pan which has been coated with nonstick cooking spray. Arrange cherries on top; sprinkle with coconut. Microwave the remaining vanilla chips on high for 1 minute. Drizzle over pizza. Chill until firm. Serve at room temperature. 16-20 servings