moist creamy citrus cake with orange buttercream

Ingredients For moist creamy citrus cake with orange buttercream

• 1 box

  duncan hines orange supreme cake mix
• 1 c

  sour cream (8oz.)
• 1 pkg

  small vanilla istant pudding mix
• 4

  eggs
• 1/3 c

  canola or vegetable oil
• 1/4 c

  water
• 1/4 c

  buttermilk
• 2 Tbsp

  white sryup
• 2 tsp

  orange extract
• BUTTERCREAM FROSTING
• 1 1/2 c

  butter, softened
• 4 1/2 c

  confectioners sugar
• 2 Tbsp

  orange juice
• 1 Tbsp

  orange zest