Preheat oven to 350 degress and line 12 muffins tins with liners
Mix all the ingredients to the streusel topping by cutting the cold butter into the dry ingredients using a fork or pastry cutter and set aside
In a medium bowl sift together the flour , baking soda, bakaing powder, salt, and pumpkin spice.
In a seperate bowl blend togther the oil, pumpkin, egg, both sugars and vanilla
Add the flour mixture to the wet ingrediets and blend
Add the milk a little at a time and blend well
Fold in cinnamon chips
Evenly spoon out the mixture into the 12 muffin tins
Top with the streusel topping, it is abour a tablespoon and a half per muffin
Bake for 25-30 minutes
Best served warm