In a large bowl, Sift together the dry ingredients (flour, baking powder, baking soda, salt and sugar).
With a pastry blender, or 2 forks, cut the butter into the flour mixture until the it resembles coarse breadcrumbs (see pics for reference)
Store in the refrigerator for up to 1 month, and use in recipes as desired.
Notes
Recipe nutrition is for entire batchShortening vs ButterI prefer my baking mix without shortening, because I like the flavor that butter gives my baked goods. However, you may opt to use vegetable shortening instead of butter if you wish.Storing Homemade BisquickYou can store this in the refrigerator for up to 1 month, and use in recipes as desired.Gluten free bakingTo make this safe for Gluten-Free diets, you will need to use gluten-free flours, and leaveners.