no-bake cookies

(Note: usually make 1.5 times this recipe)

Mix in pot on stove:

2 cups sugar
1 stick butter (0.5 cups)
1 tbs. peanut butter
0.5 cups milk
pinch salt

Bring to a boil; boil 4 minutes (this must not be barely boiling, but a full
rolling boil in which the sugar mixture looks like foam, rising up the
sides of the pot). Remove from heat, stir in:

3 cups quick (not instant!) oats
2 tbs. cocoa
vanilla to taste

drop onto cookie sheets, allow to harden.