2-3 tbsp butter

1 pkg marshmallows

6 cups cereal

Spray or butter the pan, or lay down parchment paper.
Melt the first two ingredients (low heat).
Add in cereal and press into pan.
Let cool. Be cool.

Cheerio bars – substitute PB for butter, add a pinch of cinnamon, and use Cheerios as the cereal

Tropical bars – use coconut oil instead of butter, cornflakes as the cereal and add in cashews, dried mango or apricots, shredded coconut, and sunflower seeds.