Cook the Book: Spiced Pumpkin Muffins with Pepitas

Name: Cook the Book: Spiced Pumpkin Muffins with Pepitas
Ingredients: 1/2 cup (1 stick) unsalted butter, plus more to grease the tins; 1 cup pumpkin purée (pure canned pumpkin, not pumpkin pie mix); 1/2 cup buttermilk; 2 eggs; 1 teaspoon pure vanilla extract; 3 tablespoons molasses; 1 1/2 cups all-purpose flour; 1/2 cup whole wheat flour; 1/2 cup dark brown sugar; 2 teaspoons baking powder; 3/4 teaspoon salt; 1 teaspoon ground cinnamon; 1/4 teaspoon nutmeg; 1/4 teaspoon ground cloves; 1/4 teaspoon baking soda; 3/4 cup ground dates; 1/3 cup toasted pepitas (pumpkin seeds); 1/3 cup toasted walnuts