Preheat oven to 350°F (175°C). Grease and flour three 8-inch pans or one 9 x 13 inch pan.

In a large bowl, beat eggs, sugar, vanilla, and red food coloring until well mixed.

In a separate bowl, sift together flour, salt, soda, and cocoa.

Gradually add the flour mixture to the egg mixture, alternating with buttermilk, beginning and ending with the flour mixture.

Pour batter evenly into prepared pan(s).

Bake for 35-40 minutes, or until a wooden skewer inserted into the center comes out clean.

Let cool in pan for 10 minutes before inverting onto a wire rack to cool completely.

Frost with your favorite frosting (cream cheese frosting is recommended).