I've tweaked the Better Homes and Gardens cookbook version by adding more spices (nobody wants to eat a bland oatmeal cookie). I use a heaping teaspoon of cinnamon, cloves and nutmeg (and sometimes ginger).
Fresh ground nutmeg is my new favorite.
Auntie Em's Oatmeal Raisin Cookies
3/4 cup (softened) butter
1 cup brown sugar
1/2 cup granulated sugar
1 tsp baking powder
1/4 tsp baking soda
1 heaping tsp ground cinnamon
1/4 tsp ground cloves
1/4 tsp ground nutmeg
1 tsp vanilla
1 3/4 cup flour
1 cup raisins or currants
2 cups old fashioned rolled oats
Beat butter till light and airy. Add brown sugar and granulated sugar, baking powder, baking soda, and spices. Once combined, add eggs and vanilla. Add flour, then stir in oats and raisins with a wooden spoon (it'll be too thick for the egg beater).
Bake at 375 degrees for 8 to 10 minutes (I take them out of the oven before they turn brown so they stay soft).