Step 1

Cream butter and sugar. Add eggs and blackberry jam. Mix well. Add flour, cinnamon, and allspice and continue mixing. Pour in buttermilk and add soda. Mix well and pour into a sprayed 9 x 13 baking dish or a 10 inch bundt pan. Bake in preheated 325 degree oven for 45 to 50 minutes.

Step 2

Combine sugar and flour in saucepan. Add boiling water and salt. Mix well with spoon or whisk. Bring to a boil on stove. Cook to desired thickness, about five or six minutes. If too thick add more boiling water. Remove from heat, add butter, milk and vanilla and stir. Serve pudding warm with sauce on top.