Chocolate Rice Krispies Squares - cooking recipe

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

Preparation

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