Blueberry pumpkin muffins

Ingredients

• 1-2/3 cups flour
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 teaspoon cinnamon
• 1/2 teaspoon allspice
• 1/4 cup evaporated milk
• 1 cup pumpkin
• 1/3 cup shortening
• 1 cup firmly packed light brown sugar
• 1 egg
• 1 cup blueberries
• 1 Tablespoon flour
• 2 Tablespoons flour
• 2 Tablespoons sugar
• 1/4 teaspoon cinnamon
• 1 Tablespoon butter