Pumpkin Cinnamon Streusel Muffins

Ingredients

• 1 3/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 tablespoon cinnamon
• 1 1/2 teaspoons nutmeg
• 1/4 teaspoon ground ginger
• 1/2 teaspoon allspice
• 1 1/2 cups sugar
• 1/2 cup vegetable oil
• 1/3 cup water
• 1 cup canned pumpkin puree
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 cup light brown sugar
• 1/2 teaspoon cinnamon
• 1 1/4 cup old-fashioned oats
• 1/2 cup chopped pecans
• 1 tablespoon all-purpose flour
• 1/3 cup light brown sugar
• 1 teaspoon cinnamon
• Pinch of nutmeg
• 6 tablespoons cold butter, cut into chunks