In large bowl, beat 1 cup butter and 1 3/4 cups granulated sugar with electric mixer on medium speed until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in 1 teaspoon vanilla. Add flour, baking powder, baking soda and salt; beat on low speed until mixed. Measure 1/4 cup apricot puree; set aside. Add remaining apricot puree and apricot nectar to batter; beat on low speed until mixed. Beat on medium speed 2 minutes. Spread about 2 cups batter in each pan.