Some people will tell you not to mess with a good thing.
I say, if you can make it better, why not mess with it?
I just finished turning my mom's really good cookie recipe into something amazing.
1 cup butter
1 cup shortening
1 1/2 cups dark brown sugar
1/2 cup evaporated cane juice (or white sugar, if you must)
4 tsp pure vanilla extract
2 egg yolks
1 tsp salt
2 tsp baking soda
1 cup pastry flour
2 1/2 cups all-purpose flour
1 1/2 cups rolled oats
2 cups dark chocolate chips
1 cup white chocolate chips
Preheat your oven to 350 and line your baking sheets with parchment paper. In a mixing bowl, cream together butter, shortening, brown sugar, and evaporated cane juice (or white sugar). Add vanilla, then eggs, then egg yolks. Combine flours, salt, and baking soda and add to the butter mixture. Add oatmeal, mix to combine, then add chocolate chips. Drop by tablespoonfuls onto parchment-lined sheets. Bake for 10-12 minutes or until set. You don't want over-baked cookies.
Remove to cooling racks and eat them all. Well, okay, maybe not all of them. Especially since you'll likely get 8 dozen cookies out of this recipe. But please enjoy a couple.
The pastry flour gives these a different texture than you would get if you only used all-purpose flour. You will thank me.