Kristin Cavallari's Must Haves: From a Luxe Espresso Machine to Rao's Marinara Sauce

You can find several jars of Rao's Homemade Marinara Sauce ($9) in Cavallari's pantry. "It's the only store-bought sauce that I will buy because it's the closest to that authentic homemade pasta sauce. My dad is 100 percent Italian, and he was the one who initially told me about Rao's Homemade," she says. Cavallari is a big fan of the brand, so much so that she partnered with the brand to create a few recipes incorporating the sauces in her cookbook. One of her favorite recipes is her baked ziti.

Pro Tip: "You can throw it in any recipe if you wanna just save time instead of making your own sauce, and you're not gonna lose any flavor," she says.