from the 1946 Joy of Cooking. I don't have a copy any more but i had to preserve the few recipes from it that i come back to again and again. these are old school style muffins that are much less sweet and much more versatile
mix wet and dry ingredients separately, then combine quickly. it's more important this be done quickly and without over-beating than it be perfectly free of lumps.
add up to 2 1/2 cups of any add-ins you like such as blueberries (may want to increase sugar to 1/3 cup and butter to 4 Tbs), cranberries and orange zest, chunks of ham and cheese, poppy seeds and lemon zest, or whatever else your heart desires.
divide batter into your muffin tins quickly and bake at 425f for 15-20 min or until they are just kissed golden on top.