Chocolate Chip Pumpkin Muffins

INGREDIENTS

• 2 cups all-purpose flour
• 2 1/2 teaspoons baking powder
• 1 teaspoon ground ginger
• 1 teaspoon ground cinnamon
• 3/4 teaspoon salt
• 1/4 teaspoon baking soda
• 1 dash ground allspice
• 1 egg
• 3/4 cup firmly packed brown sugar
• 3/4 cup canned pumpkin (not pumpkin pie filling)
• 2/3 cup milk
• 3 tablespoons butter, melted
• 1 teaspoon vanilla
• 1/2 cup miniature semisweet chocolate chips