Fried Onion Rings
["3 to 4 large Spanish onions", "1 c. unsifted flour", "1/2 tsp. salt", "1/2 tsp. baking soda", "1 egg", "1 c. buttermilk", "peanut oil"]
["Cut onions into slices 1/4 inch thick.", "Separate slices into rings.", "Sift in ice water for at least 2 hours.", "Drain, then dry. Sift flour with salt and baking soda.", "Beat egg; add buttermilk and dry ingredients and beat until blended.", "Dip onion rings into batter and fry in deep, hot peanut oil until golden brown.", "Drain on paper towels."]
["Spanish onions", "flour", "salt", "baking soda", "egg", "buttermilk", "peanut oil"]