SIFT together flour, baking powder, salt and sugar.
MIX in raisins and caraway seeds.*
MELT shortening.
BEAT eggs and combine with milk.
MIX liquids with dry mixture.
KNEAD on well-floured surface.
SHAPE into a round loaf and place in floured iron skillet.
BAKE at 350° F. degrees for 50 minutes.
MIX 1/2 cup brown sugar, rum, butter, lemon juice and cinnamon in skillet. Heat to a boil. Cook and stir until mixture thickens, about 2 min. Add bananas and mix until coated.
MIX sour cream and remaining sugar. Spoon banana mixture over pastry.
TOP with sour cream mixture. Cut into wedges.