These cookies are a bit crumbly compared to cookies as a class, but they are also delicious and a far sight simpler to make than most cookies, so the sacrifice is more than worth it.
1 cup sugar
1 cup peanut butter
Preheat the oven to 375ish. Mix the ingredients up in a bowl. Spoon blobs of the stuff onto an ungreased cookie sheet. Use a fork to make criss-crosses on the tops if you like. Cook for 17 or 18 minutes or until they are starting to be crispy on the bottoms and solid on the tops. Try not to burn the bottoms. EAT THEM ALL!!!
Edit: A few Tips: Make the cookie blobs really small. I just put 28 on one cookie sheet. Make them fairly round and then smoosh them down with the back of a fork to create the crosses. Serve with milk.