Salted Caramel Buttery Crumb Bars

"I love streusel or crumble toppings and the bigger the crumbles, the better. Throw in salted caramel, and you’re in for a wonderfully buttery and caramely treat. The bars are easy to make and you probably have everything on hand to make them now. The crust and topping are the same mixture, a nice time saver. Use Homemade Salted Caramel Sauce or thick storebought and not thin, runny, ice cream sundae sauce. Regular (non-salted) caramel sauce works too. As the bars bake, the caramel sauce intensifies in flavor, and it tastes richer, more buttery, and has a more intense caramel flavor. Biting through all the layers and getting a taste of the caramel filling is the best. Soft, chewy, and gooey all in one bite...."