DIRECTIONS ~-----------------------------------------------------~--IN LARGE MIXER BOWL, COMBINE MARGARINE, OATS, FLOUR, BROWN SUGAR, WALNUTS, EGGS, AND VANILLA. BEAT 3 MINUTES AT MEDIUM SPEED OR UNTIL MIXTURE IS LIGHT AND CREAMY. STIR IN 1 C CHIPS. SPREAD BATTER IN 8 IN SQUARE MICROWAVE SAFE BAKING DISH; COVER DISH WITH WAXED PAPER. COOK ON HIGH 4 MINUTES; ROTATE DISH 1/4 TURN. COOK ON HIGH POWER 4-5 MINUTES OR UNTIL TOP OF CAKE APPEARS DRY AND BOTTOM OF CAKE IS AN EVEN COLOR. SPRINKLE REMAINING 1 CUP CHIPS OVER TOP OF WARM CAKE. LET SAND 10 MINUTES, THEN SPREAD CHOCOLATE EVENLY OVER CAKE. COOL DIRECTLY ON COUNTER TOP. CUT N SERVING PIECES . MAKES 8-10