1 cup sugar
2/3 cup water
2/3 cup sour cream
1 1/2 cups heavy cream
1/4 cup whole milk
1/2 teaspoon salt
1 pound Bing cherries, pitted and halved
2 tablespoons fresh lemon juice
Prepare an ice-water bath; set aside.
Stir 2/3 cup sugar and water together in a small saucepan.
Bring to a boil, stirring occasionally.
Transfer syrup to a medium bowl and place bowl in ice-water bath.
Let syrup cool completely, stirring frequently.
In a large mixing bowl (I used the metal bowl of my KitchenAid mixer.), whisk together sour cream, heavy cream, milk, salt, and the syrup.
Transfer to freezer (I put the entire bowl in the freezer.).
After 30 minutes, remove from the freezer and whisk mixture vigorously for 2 minutes (I used my stand mixer.)
Return to freezer.
Repeat whipping every 30 minutes until sherbet is the consistency of whipped cream and whisk leaves a trail, about 3 to 4 hours.
Meanwhile, put cherries, remaining 2/3 cup sugar, and lemon juice in a large pot.
Heat over medium-high heat, stirring occasionally, until cherries begin to break down and juice thickens, about 30 minutes.
Transfer to a bowl and allow to cool completely. (Warm cherries will destroy the delicate, frozen sherbet.)
Gently fold cherry mixture into sherbet until just combined. (I left swirls of the juices through the sherbet.)
Cover surface of sherbet with parchment paper and freeze in covered container until set, 4 to 6 hours. (Serves 8-10)