Ingredients:

1/2 Sugar
1/4 Butter
2 Margarine
1 Eggs
1 Unbleached All-Purpose Flour
1/2 Cinnamon
1/4 Baking Soda
1/4 Clove
1/3 Nutmeg
1/2 Butter
1/2 Butter
2 Margarine
1/2 Brown Sugar
3 Milk
1 3/4 Powdered Sugar

Directions:

Cream together sugar and butter or margarine.
Beat in eggs.
Stir together flour, and spices; add to creamed mixture alternately with butter/sour milk, beating til well blended after each addition.
Fold in blackberry jam or preserves and nuts leaving swirls of jam. (DO NOT OVERMIX Turn into greased and lightly floured 9 x 9 x 2-inch baking pan.
Bake at 350 degree F. oven 25 minutes or until done.
Cool completely.
Frost with Carmel Icing.
CARMEL ICING:
In small saucepan, melt butter or margarine; stir in brown sugar.,
Cook stirring constantly, til mixture bubbles; remove from heat.
Cool 5 minutes.
Stir in milk and blend in powdered sugar; beat til spreading consistancy is reached.