2 lg. egg whites
1/2 tsp. salt
1/8 tsp. pepper
1/3 c. unseasoned dry bread crumbs
1 lg. sweet yellow onion, peeled, sliced 1/4" thick & separated into rings

Heat oven to 450 degrees. Put egg whites, salt and pepper in pie plate and beat lightly with fork until broken up. Put bread crumbs on wax paper or plate. Dip rings into egg mixture one at a time, turning to coat all over, then dip in bread crumbs. Put on baking sheet in single layer and bake 10 minutes until crisp and golden.