Cream the butter and sugar in a big bowl with a whisk or electric mixer. Once they are fluffy, add the 3 eggs and beat again.   Add the sour cream, salt & vanilla and mix on low.  Add the flour, baking powder, and baking soda and mix just until combined.  Spoon into muffin tin lined with wrappers filling them almost to the top.

Top muffins with your favorite toppings and use a knife to slightly mix the toppings into the batter.  If using a tart topping (like berries) sprinkle a little cane sugar on the top of the muffin.  If using nuts or oats sprinkle a little brown sugar (turbinado) on top.  Delicious!

Bake 400 degrees 20-23 minutes (until beginning to brown and a toothpick comes out clean).