Mix graham cracker crumbs, sugar, crushed pecans, and melted butter for the crust, and press into a baking dish.
For the cheesecake layer, beat cream cheese, sugar, eggs, vanilla, and cinnamon until smooth, then pour over the crust.
For the dough layer, cream butter and sugar, add egg and vanilla, then mix in flour, baking powder, salt, and crushed pecans.
Crumble dough over the cheesecake layer evenly.
Mix sugar and cinnamon for the topping, sprinkle over the dough.
Bake at 350°F (175°C) for about 45 minutes until the edges are golden and the center is set.
Let cool, then chill in the fridge for a few hours before cutting into bars. Enjoy!