Grandma’s Chocolate Cake

Directions

1. In a large bowl, cream shortening and sugar until light and fluffy. Add eggs, one at a time, beating well after each addition. Combine the flour, cocoa, baking soda, baking powder and salt; gradually add to creamed mixture alternately with buttermilk and hot water, beating well after each addition.
2. Pour into a greased 13x9-in. baking pan. Bake at 350° for 40-45 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
3. For frosting, melt chocolate and butter in a saucepan. Add the sugar, water and cream of tartar. Bring to a boil, stirring constantly. Cook and stir until a candy thermometer reads 240° (soft-ball stage). Remove from the heat. Cool completely, without stirring, about 1 hour. Add vanilla; beat until thickened. Add cream; beat until smooth. Frost cake.