Kathryn's favorite: Ranger cookies

I've known Kathryn since our days at Northwestern. Our lives has intersected at many points; we served on a student/alumni group together at school and she and her husband are good friends of Amy and Mark, so these days, we see each other at picnics and parties. It's nice to keep up on each other's life via Facebook. She and I are also faithful fans of Ina. All of that said, I'm going to declare that Kathryn's recipe is my first reader-submission recipe. Yea, Kathryn! Thank you for sending along this recipe, and I hope others will as well. There are still 9 days left, gentle readers!

Kathryn tells me this is a favorite for cookie exchanges, makes a million cookies and only uses one bowl (three thumbs up!):

Ranger Cookies
1 1/2 cup shortening
1/2 cup butter
1 cup dark brown sugar
1 cup white sugar
2 eggs
1 tsp. vanilla
2 cups flour
1 tsp baking powder
1 tsp baking soda
1/2 tsp salt
2 cups rolled oats
2 cups rice flakes (Special K)
2 cups coconut

Mix ingredients. Drop by teaspoonful on greased cookie sheet. Bake at 350 degrees for about 15 minutes.