No-Bake Cookies

1/4 cup butter
3/4 cup sugar
1/4 cup brown sugar
1/4 cup milk
1/4 cup cocoa
1/8 teaspoon salt
1/4 cup peanut butter
1/2 teaspoon vanilla
1/2 cup oatmeal
1/4 cup flour

Mix the butter, milk, sugars, cocoa and salt in a saucepan. Boil 1 minute at low heat. Remove from heat. Add peanut butter, vanilla, oatmeal and flour. Stir. Drop on wax paper on a tray. Allow to cool in refrigerator.