Sour Cream Pumpkin Coffee Cake

Ingredients

• 1 cup packed brown sugar
• 1/4 cup all-purpose flour
• 2 teaspoons pumpkin pie spice
• 1/3 cup cold butter
• 1 cup chopped pecans
• BATTER:
• 1/2 cup butter, softened
• 3/4 cup sugar
• 3 large eggs, room temperature
• 1 teaspoon vanilla extract
• 2 cups all-purpose flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1 cup sour cream
• FILLING:
• 1 can (15 ounces) solid-pack pumpkin
• 1 large egg, lightly beaten
• 1/3 cup sugar
• 1 teaspoon pumpkin pie spice