Yes, please, do not stop yourself to enjoy a good pie just because you do not have sour cherries.u003cbr/u003eu003cstrongu003eOne piece of advice,u003c/strongu003e though, is to cut the sugar in the recipe, as cherries are naturally sweeter than tart cherries, and they do not need a lot of sugar. Instead of using 1 1/2 cups of sugar, use only 1 cup.