Sift together flour, baking powder, baking soda, cloves, cinnamon, and nutmeg.
Cream butter and brown sugar until light.
Beat in eggs, one at a time.
Beat in sour cream.
Stir the flour mixture into the butter mixture until barely blended.
Stir in jam and nuts.
Pour into buttered pan.
Bake until done, about 30 minutes.
When cool, invert the cake onto a platter and ice with quick brown-sugar icing.
Make the icing:Combine brown sugar, cream, butter, and salt and cook slowly to the boiling point. Remove from heat. Cool slightly, then add vanilla. Beat the icing until it can be spread.