Oat and Pecan Peach Coffee Cake Recipe from USA

Ingredients

• 1 3/4 cups all-purpose flour
• 1 1/2 tsp baking powder
• 1/2 tsp baking soda
• 1/4 tsp salt
• 6 tbsp butter or margarine, softened
• 2/3 cup granulated sugar
• 2 large eggs
• 1 tsp vanilla
• 1/2 pt (237 ml) (1 cup) sour cream
• 1 1/4 lb (567 g) peaches, peeled and cut into 1 inch chunks (2 cup)