Chocolate Rice Krispy Treats

from Stephanie's Kitchen

1/2 bag (5.25 oz) mini marshmallows, or 30 large marshmallows
2 TBS. butter
3 cups crisp rice cereal
1 cup milk chocolate chips
1/2 cup white chocolate chips, optional

1. Melt marshmallows and butter together in a large microwave safe bowl. I microwave for 30 second intervals; and stir until smooth.

2. Pour in cereal and stir a little; then add chocolate chips and stir until well combined and cereal is all coated. Pour and pat down in a greased 9x9 inch pan. Let set up.

3. Melt white chocolate chips and drizzle on top. Let cool. Cut in bars.