Perfect Plum Muffins (made with yogurt)...don't knock 'em till you try 'em!

good quality flour (like King Arthur)

baking powder

baking soda

sugar

eggs

light olive oil

yogurt (if using Greek yogurt, add 1 tbsp milk or buttermilk)

small plums, or 6 medium plums (should weigh about 320g) (or blueberries, apples, etc.)

Demerara or Belgian Pearl Sugar to top, if desired