Coat a 10-in. fluted tube pan with cooking spray and dust with flour; set aside. Drain pears, reserving juice. Chop pears; place in a large bowl. Add reserved pear juice. Add the next seven ingredients. Beat on low speed for 30 seconds. Beat on high for 2 minutes. Pour into prepared pan.
Bake at 350° for 60-65 minutes or until a toothpick inserted in the center comes out clean. Cool for 10 minutes before removing from pan to a wire rack to cool completely. Dust with confectioners' sugar.