Avocado Cucumber Soup - Ellie Krieger

Ingredients

• 1 medium English cucumber (about 12 ounces) unpeeled, seeded
• 1 ripe avocado, pitted and peeled
• 1 cup plain low-fat or whole milk kefir
• ¼ cup basil leaves
• 1 large scallion, white and light green part only, coarsely chopped
• 1 teaspoon lemon zest
• 1 tablespoon fresh lemon juice
• ½ teaspoon salt, plus more to taste
• ¼ teaspoons freshly ground black pepper