1cupbuttermilkor a mixture of 1 scant cup milk plus 2 tbsp white vinegar - let sit for 10 minutes before adding
4tbspbuttermelted, then cooled to room temp
1cupmixture of blueberries and strawberries
Preheat oven to 400 degrees. Add all dry ingredients to a mixing bowl. Mix to combine.
Add all wet ingredients to another bowl. Make sure that butter has cooled.
Make a well in the dry ingredients and add the wet. Mix to combine, but do not overmix. Mix less than 10 times!
Fold in the fruit, reserving about 1/4 cup.
Add batter to a muffin tin. Either spray the wells or add cupcake papers. Add remaining fruit to the tops of the muffins. Sprinkle each muffin with a smidge of white sugar.
Put muffins in the oven and bake for 5 minutes. After 5 minutes, turn the temperature down to 350 degrees. Bake for 15 minutes and then remove from oven. Remove muffins immediately from muffin tin to cool.