Pumpkin Crumb-top Loaf...YUM!

So I just made the best Pumpkin Loaf with an amazing walnut crust! It made my whole house smell delicious and scored some major points with the Hubby...xoxox

Attached is the recipe below. The only thing I added that is not on the ingredient list are raisins..yum

1-1/2 cups all-purpose flour
2 teaspoons baking powder
1 teaspoon pumpkin pie spice
1/2 teaspoon salt
1 egg
1/2 cup granulated sugar
1 cup canned solid-pack pumpkin
1/4 cup vegetable oil
1 teaspoon vanilla
1/2 cup walnuts, coarsely chopped
Topping:
1/4 cup (1/2 stick) unsalted butter, softened
1/3 cup packed dark-brown sugar
1/2 cup all-purpose flour
1/3 cup walnuts, finely chopped
1 teaspoon confectioners' sugar (optional)
Directions
1. Loaf: Heat oven to 350°. Coat a 9x5x3-inch loaf pan with nonstick cooking spray.
2. Mix flour, baking powder, pie spice and salt in small bowl. Beat egg and sugar in large bowl. Beat in pumpkin, oil and vanilla until smooth. Make a well in center of flour mixture. Add egg mixture. Stir just until moistened and batter comes together. Fold in walnuts. Spoon batter into prepared pan.
3. Topping: Mix butter, brown sugar and flour in small bowl until crumbly. Stir in walnuts. Sprinkle over batter.
4. Bake loaf at 350° for 50 to 55 minutes, until wooden toothpick tests clean. Cool in pan on rack 10 minutes. Turn out onto rack to cool completely.