Email to KateMarie Onions: Baked Onions Source of Recipe Unknown List of Ingredients 4 Large vidalia onions peeled and sliced 1/2" thick 1/3 cup maple syrup 1/4 cup melted margarine Instructions Layer sliced onions in an 8x8 greased pan. Combine the syrup and margarine and pour over the onions. Baked uncovered @ 425 for 45 minutes until tender.