Preheat oven to 400 degrees
Spray 8" round glass baking dish with cooking spray - set aside.
For cake - combine flour, sugar, baking powder, cinnamon & salt in mixer bowl.
Add in milk & egg - beat.
Add in Land O' Lakes butter - mix
Add in pumpkin butter - mix well.
Transfer to prepared dish
Make streusel -
In small bowl whisk together all streusel ingredients until you have a thick paste like consistency.
Drop on top of cake batter in small portions to cover most of the cake - do not mix
Bake 30-35 minutes or until toothpick test is mostly clean.
Cool on wire rack in pan completely before removing.