Sift flour, sugar, baking powder and salt into a bowl. In covered blender container, blend peanuts at high speed until coarsely chopped; stir into dry ingredients. Blend remaining ingredients at low speed until smooth. Pour over flour mixture; stir just until dry ingredients are moistened. Spoon into a greased 9 x 5 inch loaf pan. Bake at 350 F for 1 hour or till done. Remove from pan and cool.