Cinnamon Coffee Cake – My Food Plans

Ingredients

• 2 cups all-purpose flour
• 1 cup granulated sugar
• 1/2 cup unsalted butter, softened
• 1 cup sour cream
• 2 eggs
• 1 teaspoon vanilla extract
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 1 tablespoon ground cinnamon
• 1/3 cup brown sugar
• 1/4 cup chopped pecans or walnuts (optional)