Rice Krispies Squares

1/4 cup butter

1 10 oz. package marshmallows

1 tsp vanilla

6 cups rice krispies

Butter a 9x13 glass cake pan. 

Melt butter in a large saucepan over low heat. Add the marshmallows and stir until completely melted. Remove from heat. Stir in the vanilla and the rice krispies until well coated, then press the mixture into the buttered pan. ( I like to butter my hands and use them to press it in.) Cool and eat!