Preheat oven to 350~. In large mixer bowl, beat
margarine and brown sugar until fluffy; add flour, oats, baking
powder and 1/2 teaspoon salt. Mix until crumbly. Reserving 1/2
cup flour mixture, press remainder on bottom of 15x10"
jellyroll pan. Bake 20 mintues. Meanwhile in medium bowl, combine
pumpkin, sweetened condensed milk, eggs, pumpkin pie spice,
vanilla and remaining 1/2 teaspoon salt. Spread over baked crust.
In small bowl, combine reserved 1/2 cup flour mixture with
pecans; sprinkle over pumpkin mixture. Bake 30-35 minutes or
until set. Cool. Cut into bars. Sprinkle with confectioners'
sugar if desired. Store covered in refrigerator. Makes about 48 bars.