Preparation Preheat oven to 350°F. Butter and flour 13x9x2-inch metal baking pan. Boil rum in heavy small saucepan until reduced to 1/4 cup. Set aside. Sift next 5 ingredients into medium bowl. Using electric mixer, beat rum, sugar, eggs, oil, and vanilla in large bowl until slightly thickened, about 5 minutes. Add flour mixture; beat just until blended. Stir in apples, walnuts, and raisins. Transfer batter to prepared pan. Bake cake until tester inserted into center comes out clean, about 40 minutes. Cool cake in pan on rack. Cut into squares and serve.
Preparation Preheat oven to 350°F. Butter and flour 13x9x2-inch metal baking pan. Boil rum in heavy small saucepan until reduced to 1/4 cup. Set aside. Sift next 5 ingredients into medium bowl. Using electric mixer, beat rum, sugar, eggs, oil, and vanilla in large bowl until slightly thickened, about 5 minutes. Add flour mixture; beat just until blended. Stir in apples, walnuts, and raisins. Transfer batter to prepared pan. Bake cake until tester inserted into center comes out clean, about 40 minutes. Cool cake in pan on rack. Cut into squares and serve.