This Pumpkin Coffee Cake Recipe with Crumble Topping is hands-down the best one we have ever made - there are never leftovers and friends and family beg for the recipe ever time. Incredibly moist, packed with cozy fall spices that we tested to perfection, and topped with a buttery crumble. Enjoy as-is or add in an optional glaze - vanilla, maple, or cream cheese - for an added layer of deliciousness!