1/2 teaspoon baking soda dissolved into 2 tablesppons hot water
1 teaspoon vanilla
Cream butter, shortening and sugar. Add eggs, one at a time, beating well after each one. Add flour and buttermilk alternately and use the lowest mix seting as you do this. Add soda and vanilla. Pour into a greased 13 X 9 greased and floured pan. bake at 325 for 50 minuntes.