To make simple oatmeal cookies, cream together 1 stick butter and 1 cup sugar. Mix in 1 egg. Add 1 cup and 2 tablespoons flour, then stir in 1 cup raisins and 1 1/2 cups rolled oats. Form cookies, and bake them at 350 degrees Fahrenheit for nine minutes.
For a brown sugar variation, cream together 1 cup salted butter and 2 cups packed dark brown sugar until they are fluffy. Add 2 teaspoons vanilla extract. Mix in 2 eggs one at a time. In another bowl, combine 1 1/2 cups flour, 1 teaspoon salt and 1/2 teaspoon baking soda. Add this to the butter mixture, then stir in 3 cups old-fashioned oats. Form cookies on a lightly greased baking sheet, and bake them at 350 degrees Fahrenheit for 12 to 13 minutes.
For no-bake peanut butter oatmeal cookies, line a 9-by-9-inch pan with foil and spray it with a non-stick spray. Melt together 1 cup peanut butter and 1/2 cup honey until they are smooth. Stir in 3 cups rolled oats. Press the mixture into the lined pan, then refrigerate it. When the mixture has set, cut it into squares. To keep the cookies firm, store them in the refrigerator.