There have been all kinds of recipes out there over the years for a Bisquick like mix. Most have used shortening, and of course we have all been trying to avoid the hydrogenated products. I worked at this for a while to come up with a recipe that I was happy with. Make sure your baking powder is fresh to get the best quality when you bake with this mix. I have never used more than about 3 cups of whole wheat flour in the mix. I think it would end up being too heavy if you use to much whole wheat flour. You can use this mix in any recipe that calls for Bisquick. I have never tried it with powdered buttermilk, I would think you would need to add a bit of baking soda if you try that. You should store this in the fridge. The cooking time is actually the time to mix it all together.