Sour Cream and Apple Coffee Cake Recipe - Details, Calories, Nutrition Information

Ingredients

• 1 cup walnuts, toasted
• 1/2 cup brown sugar , packed
• 2 tbsp all-purpose flour
• 1 tsp cinnamon
• 2 tbsp unsalted butter, cut into bits
• 3 cups granny smith apples, peeled and chopped into 1 x 1 inch pieces (approx)
• 1 tbsp sugar
• 1 tsp lemon juice
• 3/4 cup sour cream
• 1/4 cup buttermilk or 1/4 cup milk
• 2 3/4 cups all-purpose flour
• 1 tsp baking powder
• 1 tsp baking soda
• 3/4 tsp salt
• 1 cup butter, room temperature
• 1 cup sugar
• 3/4 cup brown sugar , packed
• 3 large eggs
• 2 tsp vanilla extract