Spiced Apple Sauce Crumb Muffins

Makes 12 muffins

For Muffins:
1/2 cup unsalted butter
1 cup brown sugar, firmly packed
1 large egg
1 teaspoon vanilla extract
2 cups all-purpose flour
1/2 teaspoon ground cloves
1 teaspoon allspice
1 1/2 teaspoons ground cinnamon
1 cup chunky apple sauce
1 teaspoon baking soda

For Crumb Topping:
2 tablespoons unsalted butter
2 tablespoons firmly packed brown sugar
2 tablespoons all-purpose flour
1/2 teaspoon cinnamon
1/4 cup chopped walnuts

Preheat oven to 400 F.  Line a muffin pan with paper liners.

Make topping:
Combine butter, brown sugar, flour and cinnamon in a bowl.  Using your fingers, break up the butter and blend with sugar and flour until the mixture is crumbly.  Stir in nuts.  Set aside. 

Make muffins:
Sift flour together with cloves, allspice and cinnamon.  Set aside.

In a bowl or an electric mixer, combine the butter and sugar and blend until fluffy.  Add the egg and vanilla and beat until smooth.  Gradually add flour mixture to wet ingredients.

In a separate bowl, mix apple sauce and baking soda together.  Add to muffin mixture until barely just combined (the batter will be slightly chunky).  Divide batter evenly among muffin cups and top with crumb topping.  Bake until puffed and golden, 15-18 minutes.  Cool muffins in pan for 5 minutes, then remove and cool completely on a wire rack.  Store at room temperature for up to 3 days.