(Makes 1 loaf; about 12 generous slices)

Preheat oven to 350 degrees F (175 degrees C). Grease an 8''x4'' loaf pan. In a large bowl, beat egg until thickened. Stir in marmalade and butter until well blended. Sift together flour, baking powder, soda and salt. Combine buttermilk and lemon juice. Alternately add dry and liquid ingredients in thirds to egg mixture, stirring until batter is mixed. Fold in chopped walnuts. Pour into loaf pan and bake 50 to 55 minutes or until a wooden pick inserted in center comes out clean. Let cool in pan about 5 minutes. Remove bread from pan. Cool thoroughly on a wire rack. Wrap loaf in foil.

(Per serving: 193 calories, 4 grams protein, 5 grams fat, 36 grams carbohydrates, 21 milligrams cholesterol, 275 milligrams sodium.)