Grandpa's Soup — Eiko Kadono

When Grandma dies, Grandpa is too sad to do anything. All day long, day after day, he sits by himself in his house. Then, one day, Grandpa wakes up and decides to try to make the soup his wife used to make for him. Though each batch he makes is bigger and better than the last, Grandpa hardly gets a taste of it. Unexpected visitors, hungry for soup, keep arriving at his door. Soon, Grandpa discovers that sharing with his new friends is the best cure for his loneliness.