Ingredients:
2/3 cup margarine or butter -- softened
1 3/4 cups sugar
2 eggs
1 1/2 teaspoons vanilla
2 3/4 cups all-purpose flour*
2 1/2 teaspoons baking powder
1 teaspoon salt
1 1/4 cups milk
1 1/2 cups Chocolate Butter Frosting -- (see recipe)

Directions:
Heat oven to 350º. Grease and flour rectangular pan, 13 × 9 × 2 inches, or 2 round pans, 9 × 1 1/2 inches. Mix margarine, sugar, eggs and vanilla in large mixer bowl until fluffy. Beat on high speed, scraping bowl occasionally, 5 minutes. Beat in flour, baking powder and salt alternately with milk on low speed. Pour into pan(s).

Bake until toothpick inserted in center comes out clean, rectangular 45 to 50 minutes, layers 30 to 35 minutes. Cool layers 10 minutes; remove from pan. Cool completely. Frost rectangular or fill and frost layers with Chocolate Butter Frosting (see recipe).