Cream shortening, sugar and vanilla; add eggs, one at a time. Make a paste of the cocoa and food coloring, add the mixture above. Add salt. Add sifted flour alternatively with buttermilk. Add vinegar and baking soda (it’ll fizz); mix.

Pour batter into well-greased and floured bundt pan. Bake at 350 for about 35 minutes. Cool 10 minutes and remove from pan. Allow to cool completely, then ice.

Frosting:

Cook flour and milk until thick, stirring constantly; allow to cool completely. Beat sugar, butter and vanilla to a cream. Combine and frost.