Last summer my husband and I drove through Washington State, tasting great wines at every stop, but it wasn't bottles we carried home in our luggage; it was Walla Walla onions. These medium-size onions, grown in the southeastern part of the state, are sweet and mild. When cooked (I love them in curries; see ** Chicken and Onion Curry** for a recipe), they turn luscious and even sweeter, but it's almost a shame to cook them, because they're so delicious raw. —_Marsha Pederson, Roselle, Illinois _