Okay, figured I'd contribute!
This was the first thing I ever learned to make, but everyone I know loves them

These are the tastiest peanut butter cookies you'll ever eat, and easy too!
1 cup of Sugar
1 cup of peanut butter (Creamy, chunky just makes the whole thing weird consistency)
1 egg (Brown or white, doesn't really matter)
1. Preheat oven to 375
2. Stir the ingredients together vigorously
3. Roll into palm-sized balls, stick em onto a pan. Leave some room, they expand!
4. Stick in the oven for about 20 minutes.
5. ???
6. Profit!
Easiest cookie recipe there is! Not the greatest for you but they taste delicious!