I call this recipe "basic" because from this starter recipe, you can add or adapt the recipe to add many other kinds of additions...nuts, raisins, coconut, dried cranberries, etc. I have made these for years and never had a bad batch!
Preheat oven to 375 degrees. In a medium sized bowl, melt butter or margarine in the microwave until soft and melting, add white and brown sugars and blend well. Beat in the eggs, then stir in the vanilla. In a large bowl, sift flour, baking soda, salt & cinnamon and stir, blending well. Add the butter & sugar mixture and stir it in well, blending all. Add oats and mix together well.
Place by spoonfuls or make walnut-sized balls if you can onto cookie sheets. (I use parchment to bake on. You never burn the bottoms of the cookies using parchment!) Place about 2 inches apart.
Bake 12-15 minutes (Watch your oven--baking time may vary.) Let sit for 2 to 3 minutes, then remove from cookie sheet.
NOTES: As I said, this is just a basic recipe. If you wish to add something to the mix, feel free! For example, 1 Cup chopped pecans or walnuts, 1 Cup raisins or dried cranberries, 2/3 cup of coconut, etc... I have even mixed in 1/2 Cup of English Toffee bits with chopped pecans and they turned out fantastic! And I will mention again the ease with which cookies bake on parchment paper! I'll never grease another cookie sheet ever again! Try it!