This recipe does not contain buttermilk, but it might be the one you are searching for. It is an old recipe and one I have used many times. Hope you enjoy it!WHEATIES COCONUT COOKIES

1 cup shortening (1/2 Crisco, 1/2 butter)
1 cup brown sugar
1 cup white sugar
2 eggs
2 cups coconut
2 cups flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon vanilla
2 cups Wheaties

Cream shortening and sugar. Add beaten eggs. Add coconut. Sift flour, soda, baking powder and salt together and add to mixture. Blend in vanilla and Wheaties. Roll in balls the size of walnuts and bake 12 minutes at 350 degrees F.