Walnut Espresso Coffee Cake - Diamond Nuts

Ingredients

• Cake:
• 2 cups flour
• 1 1/2 tsp baking powder
• 1/2 tsp baking soda
• 1/2 tsp salt
• 1 cup sugar
• 2 eggs
• 1 cup sour cream
• 1 stick butter
• 1 tbsp espresso powder
• 1/4 cup warm water
• Topping:
• 1 cup brown sugar
• 1/2 cup melted butter
• 1/2 cup Diamond of California ® Chopped Walnuts
• 1/4 cup flour
• Glaze:
• 1 tsp espresso powder
• 3 tbsp warm water
• 1 cup powdered sugar