Cinnamon Coffee Cake I Recipe

Ingredients

• 1 cup butter
• 2.75 cups white sugar
• 4 large eggs
• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon salt
• 2 cups sour cream
• 1.5 cups chopped walnuts
• 2 tablespoons ground cinnamon
• 2 teaspoons vanilla extract
• 4 cups all-purpose flour