Good-Cooking - Butterscotch Crumb Muffins

Ingredients

• 2 1/2 cups unbleached all-purpose flour
• 2 cups (packed) light brown sugar
• 2/3 cup solid vegetable shortening (such as Crisco), cold and cut into 4 pieces
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon cinnamon
• 1/4 teaspoon grated nutmeg
• 1/2 teaspoon salt
• 1 cup buttermilk
• 2 large eggs, well beaten
• 1 cup butterscotch baking chips