Source: kingarthurflour.com: The King Arthur Flour Baker’s Companion Cookbook

12 muffins

Ingredients

• 4 tablespoons (2 ounces) unsalted butter
• 1 cup granulated sugar (3/4 tasse)
• 1 large egg
• 1/2 teaspoon nutmeg
• 1/2 teaspoon allspice
• 2 medium-size ripe bananas, mashed (about 3/4 cup)
• 1/3 cup milk
• 1 cup white whole wheat flour or traditional whole wheat flour
• 1 cup unbleached all-purpose flour
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 3/4 cup chocolate chips
• 1 cup walnuts, chopped

Directions

1. Preheat the oven to 350 F.
2. In a medium-sized mixing bowl, cream together the butter and sugar until they’re smooth.
3. Scrape the bowl down, then beat in the eggs, spices, banana, and milk.
4. In a separate bowl, whisk together the dry ingredients, then gently stir them into the butter-sugar mixture.
5. Spoon the batter into 12 lightly greased muffin cups.  Bake the muffins for 20 minutes, or until a cake tester inserted in the center comes out clean.  Remove from the oven, and after 10 minutes turn them out the pan to cool.