This is how I make them:
2 bags of Dandies Marshmallows
1 box of puffed rice cereal
1 stick of Earth Balance
1-2 tb of Nielsen-Massey vanilla bean paste
Spray your container/Disney with cooking spray. Melt the Earth Balance buttery stick in a soup pot over a medium flame. When just melted, add the vanilla and stir. Now the marshmallows!!! And stir, stir, stir!! When they are as melted as possible, without being burned, add the cereal, turn off the flame, and fold the heck out of it to make sure all the rice is covered in mallow goodness. Scoop into your container(s) and pat until even. Chill, cut, and serve.