1Heat oven to 350°F. Generously grease 8 fluted tube muffin cups with cooking spray or shortening. In medium bowl, stir together flour, sugar, baking powder, baking soda and salt; set aside.
2In large bowl, beat remaining ingredients with whisk until well blended. Gradually beat in flour mixture until well combined and batter is fluffy. Divide batter evenly among fluted muffin cups.
3Bake 15 minutes or until toothpick inserted in center of cake comes out clean. Cool in pan 2 minutes. Place cooling rack upside down over muffin pan. Turn rack and pan over; remove pan. Cool completely, about 1 hour.