French Fried Onion Rings
["2 c. sifted flour", "2 eggs", "2 c. milk", "2 tsp. baking powder", "3 tsp. salt", "3 large Spanish onions", "oil for frying"]
["Combine first 5 ingredients in a large bowl.", "Beat until smooth.", "Cover and let stand for at least 1/2 hour.", "Heat oil to 375\u00b0 in a deep fryer.", "Slice onions into 1/4 to 2/3-inch slices, separating into rings.", "Dip each ring into batter and fry, a few at a time, until golden.", "Drain on paper towels and cool; then pack into plastic bags.", "Freeze immediately."]
["flour", "eggs", "milk", "baking powder", "salt", "Spanish onions", "oil"]