Peanut Butter Rice Krispy Squares

Originally from my blog.

Ingredients:
-2 cups rice bubbles
-1 tablespoon peanut butter
-1 teaspoon margerine/butter
-100g marshmallows

Directions:
Grease and line tin (20cm square is a little big but ok)
Microwave first 3 ingredients for about 10 sec, till marshmallows puff up.
Mix in rice bubbles and put mixture into tin. Flatten.
Cool in fridge, then cut into squares and put into an airtight container.