Sift together into a large bowl:

2 1/2 c. sifted cake flour
3 1/2 tsp. double-action baking powder (4 1/2 tsp. single-action)
1 1/3 c. sugar
1 tsp. salt

Add:

2/3 c. Snowdrift
3/4 c. milk

Mix enough to dampen flour. Beat 2 minutes. If by hand, count beating time only. With electric mixer use "low speed"; scrape bowl often; scrape beaters after 2 minutes.

Add:

2 egg whites, unbeaten
1/4 c. milk

Beat 1 minute. Pour half of batter into another bowl. To one half add 1/2 teaspoon vanilla. To other half add: 2 egg yolks, 1/2 teaspoon lemon extract and 4 or 5 drops yellow coloring. Beat only enough to blend. Pour batters alternately into 2 greased 9 inch layer pans lined with plain paper. To get marble effect, stir through batter once with knife. Bake in moderate oven (350 degrees) about 30 minutes. Cool. Frost with Marmalade Frosting.

MARMALADE FROSTING:

Cream 3 tablespoons Snowdrift and 2 tablespoons butter. Add 1 cup orange marmalade, grated rind of 1 orange and 3 1/2 cups sifted confectioners' sugar. Beat until smooth; add 1 tablespoon orange juice or enough for desired consistency. Frost; decorate with marmalade.