Chilled Buttermilk, Beet, Radish Soup

Ingredients

• – 5 cups Real California buttermilk
• – 1 cup vanilla-flavored Real California yogurt, plus more for garnish (if not using sour cream)
• – 1/2 cup Real California sour cream, plus more for garnish (if not using yogurt)
• – 3 tbsp. sugar
• – 3 tbsp. vinegar, ideally champagne vinegar or white wine vinegar
• – 2 cups drained, finely diced jarred or canned pickled beets
• – 2 cups finely diced hot house or English-style cucumbers
• – 1 cup thinly sliced scallions, plus more for garnish (if not using dill)
• – 1/2 cup thinly sliced radishes
• – 1/4 cup finely chopped dill, plus more for garnish (if not using scallions)