Fudgy Pumpkin Bars with Vanilla Bean Browned Butter Glaze

"Fudgy is the only word that describes the bars. They’re like biting into a piece of super soft pumpkin fudge that's crossed with the pumpkin equivalent of moist, fudgy brownies. They’re rich, soft, supremely moist, and tooth-sinkingly dense and satisfying. If you’re looking for a fluffy slice of pumpkin cake, they’re not that. They're packed with rich pumpkin flavor and the glaze makes the bars go from really good to life-changing. The glaze seeps down and soaks in, and makes the bars even moister, softer, and fudgier. Between the warming spices and the glaze, you'll be in fall comfort food heaven...."