Note: To keep the wild rice from splitting during cooking, soak 8 hours or overnight, then rinse before cooking. Wild rice takes longer to cook than regular rice, about 50 minutes.

Combine stock and rice in a medium saucepan. Cover. Bring to a boil over high heat. Reduce heat. Simmer until rice is cooked, about 50 minutes. Heat olive oil in a skillet. Add walnuts, apricots, raisins, cranberries, and celery. Sauté gently 4-5 minutes. Stir walnut mixture into rice. Add salt and pepper. Stir to combine. Serve immediately.