Chef Tip:To freeze soup, cool puréed soup in sauce-pot in sink filled with ice water. Divide soup into freezer-safe containers and freeze up to 3 months. Thaw soup overnight in the refrigerator, cover and reheat on the stovetop (or in a microwave-safe dish in microwave oven on high) until internal temperature reaches 165°F. Prepare toasted hazelnut mixture before serving.