pumpkin streusel muffins

Ingredients

• 1/2 cup butter, softened (1 stick)
• 1 cup brown sugar, firmly packed
• 1 - egg
• 1 can canned plain pumpkin
• 1/4 cup evaporated milk
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1 1/4 teaspoons cinnamon
• 1/4 teaspoon powdered ginger
• 1/8 teaspoon ground cloves
• 1 2/3 cups all purpose flour
• STREUSEL TOPPING
• 2 tablespoons all purpose flour
• 2 1/2 tablespoons white sugar
• 1 teaspoon cinnamon
• 1 tablespoon butter, room temperature