The round roast is an iconic supper roast with an affordable price tag and a very lean cut. It has roots in oven cooking, but by giving it a thick garlic and herb crust and grilling it over charcoal with a hint of smoke the flavors become deep and rich with sublime slices of medium-rare beef made for slicing, sandwiches, wraps, and more.
When I think of roast beef, I immediately think of Sunday supper and thick gravy. Mashed potatoes and carrots. It wasn’t until much later, when I mastered the eye of round roast, that I started playing with these big inexpensive cuts again.
And it turns out, I don’t know what took me so long.
The round roast holds a ton of rich flavor at a less expensive price point than the eye of round or its big brother, the prime rib, and comes in a manageable weight for dinner and then a few creative meals inspired by leftovers, averaging 2.5 to 4 pounds.
With minimal marbling, it’s an incredibly lean cut, so cooking it without drying it out or causing it to become tough requires a bit of T.L.C. Or in this case, a moderately temped grill, some savvy tech, and patience.
But, can you cook roast beef on a grill?
Grilling isn’t too different than turning the oven on and letting things get preheated. In this case, the goal was to barbecue a roast with charcoal. Which meant creating a charcoal heat source that was able to remain stable for the duration of the cook and grilling with the lid closed to create a convection heat for even cooking.
It turns out, once the temp was holding, you can grill a roast and the flavors of charcoal and smoke from wood add a whole new layer to the classic meat. Warning, you may never go back to oven roasting.
What you need
For the recipe, all you need is a 3-pound round roast, trimmed of any excess fat and some garlic, rosemary, oil, Ooomami, and White Tux Spice blends.
However, for true success, this recipe needs a thermometer. The internal temp of the beef, not going above medium rare (or your desired temperature) is the key to keep the meat juicy and not over-cooking it.
How to Grill Roast Beef
Start with an indirect fuel source. For this cook, I create offset heat by arranging the coals to one side of the grill. I used the Primo grill and added the deflector plates as well. After letting the grill come to a stable temperature, for 30 minutes, I added woodchips and put the meat in, closing the lid and walking away.
How long the roast will take on the grill depends on the size of your roast and the heat of the grill. Like all things, the bigger the weight, the longer the cooking time. However, this is when the handy internal thermometer is the most valuable tool you can own.
For a 3 pound roast, with a grill around 350 to 400 degrees, it takes about 1 hour to grill to an internal temperature of 125 degrees, with a 20-minute rest before slicing.
What to do with leftovers
After the meat has cooked and rested, serve it as a main course, in thick slices. If you have leftovers, wrap the beef in a thick layer of foil and store it in the fridge for up to 3 days. Once it’s chilled, shave it thin for sandwiches, wraps, pho, and really, in anything you want some beef layered on.
What to serve with grilled roast beef
If serving as a main dish, try these smoked brussels sprouts, or mac and cheese to pair with it. Charred carrots or asparagus would also go great as a pair and domino potatoes would help make a perfect meal out of it all.
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