butter pecan sour cream cake

Ingredients For butter pecan sour cream cake

• 1 box

  duncan hines butter pecan cake mix
• 1/2 c

  melted butter
• 1 c

  sour cream
• 1 tsp

  cinnamon
• 1 tsp

  pure vanilla extract
• 3/4 c

  water
• 3 lg

  eggs
• SWIRL FILLING
• 1/2 c

  packed light brown sugar
• 2 Tbsp

  flour
• 2 Tbsp

  melted butter
• 1 tsp

  cinnamon
• 1/2 tsp

  nutmeg
• 1/2 c

  pecan pieces (optional)