Heat oven to 350°F. Grease and flour one 8- or 9-inch round cake pan; line 12 muffin cups with paper baking cups. In large bowl, combine all cake ingredients; beat at low speed until moistened. Beat 2 minutes at medium speed. Fill paper-lined muffin cups 2/3 full; pour remaining batter into greased and floured cake pan. Place cake pan in oven first, then muffin tin.