For the cinnamon streusel:
1/2 cup all-purpose flour
1/2 cup brown sugar, packed
1 teaspoon ground cinnamon
6 tablespoons cold unsalted butter, cut into chunks

To make the pancakes:
3/4 cup all-purpose flour
1/2 cup whole wheat flour
2 tablespoons light brown sugar
2 teaspoons baking powder
1/4 teaspoon salt
1 teaspoon ground cinnamon
1/4 teaspoon nutmeg
1/8 teaspoon ground ginger
1/8 teaspoon ground cloves
1 cup milk
1/2 cup canned pumpkin (not pumpkin pie filling)
1 large egg
2 tablespoons canola oil
1 teaspoon vanilla extract