non-dairy milk (I've used soy, rice, and almond successfully)
peanut butter (the natural all-peanut kind)
vegan margarine (Earth balance works well and comes in a soy-free variety as well)
old fashioned oatmeal
ground flax seed
Combine oatmeal, flax seed, and brewer's yeast in a large bowl. In a small saucepan, combine non-dairy milk, sugar, cocoa, peanut butter, and margarine. Stir over medium heat and bring to a boil. Boil mixture for 2 minutes, stirring constantly. Add vanilla. Pour chocolate mixture over oatmeal mixture and stir well to combine. Drop cookies onto a cookie sheet or wax paper to cool or refrigerate until cookies are firm and no longer sticky.