Mix the above ingredients by hand and divide in half. Put one half on the bottom of 9" X 13" pan and press to cover bottom. Spread jam or preserves on top, then put remaining half on top of jam. Press down to cover jam.
Blend together eggs, sugar, oil and vanilla. Sift together flour, soda, cinnamon and salt. Stir into egg mixture. Fold in apples, nuts and raisins. Bake in greased and floured 9 X 13 pan. 350 degrees - 1 hour. Let cool and sprinkle with powdered sugar. Cut into squares.