• You must half the recipe for a 3-quart cooker.
• Make the soup less sour by adding up to 1 tablespoon granulated white sugar with the vegetables.
• Substitute 1/4 cup pine nuts for the walnuts.
• Substitute 6 ounces spiraled zucchini for the zucchini slices.
• Finish the bowls with a drizzle of fine, aromatic olive oil.