Chocolate Rice Krispies Squares

This recipes was given me by a friend; i've not tried it yet.

• Ready In: 15 mins
• Serves: 30

Ingredients

• 1⁄4 cup margarine or 1⁄4 cup butter
• 1 (250 g) package  of reg. marshmallows (about 40)
• 1⁄2 teaspoon vanilla
• 6  cups  Rice Krispies
• 1⁄2 cup  semi-sweet chocolate chips, more if you prefer

Directions

1. In large saucepan over low heat, melt butter.
2. Add marshmallows, stir until melted and well blended.
3. Add choc.
4. chips and stir till melted.
5. Remove from heat.
6. Stir in vanilla, add cereal stirring until well coated.
7. Using buttered spatula, press into buttered 13x9" pan.
8. Cool and cut into squares.