Pro-Tip: Perfecting the Chipotle Coffee Rub CrustFor this recipe, using an espresso roast like Café Bustelo from Kroger will give you the richest flavor and deepest crust. Its bold profile stands up beautifully to the smoky heat of the grill. Pair that with a coarse grind, and you’ll get that bold, blackened crust steak lovers rave about. Just make sure the coffee grounds aren’t too large, or they might burn during searing.