A delicious marshmallow dessert !
Melt the butter in a pot on medium heat then slowly add the marshmallows (chopped) until they are melted. When creamed, lower the heat and add the rice crispies. Mix it until all the rice crispies are mixed with the melted marshmallow. Pour it in a tray with baking paper and press flat. Let it cool, then refrigerate. After it has been in the fridge for a couple of hours, cut it in cubes and serve at room temperature !