Carrot-Orange Soup

4-6 portions

4 T butter
2 C chopped onions
1-1/2 to 2 lbs carrots, peeled and chopped
4 C stock
1 C OJ
Salt, pepper
Grated fresh orange zest

Melt butter and saute onions until soft, about 25 minutes. Add carrots and stock and simmer 30 minutes. Strain/blend, reheat gently and add OJ. Season and garnish.