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4.67 from 12 votes

Sirloin Tip Roast

To properly cook a roast beef, we need around 325 to 350 degrees for about 20 - 30 minutes per pound.  Most of the other smokers I have owned required a lot of effort to keep that (relatively, for a smoker) high temperature going for an extended period of time.  Not with this smoker design, the roast beef came out perfect and took a little over 3 hours. 


  • 2 tablespoons chopped fresh Rosemary
  • 2 tablespoons Kosher salt
  • 2 teaspoons Paprika
  • 1 teaspoon fresh ground black pepper
  • 1 teaspoon garlic powder


Just A Simple Rub Down

  • The sirloin tip roast has a great beef flavor, so I just mixed up a simple rub using some of my always abundant fresh rosemary and a few more ingredients from the cupboard. The rosemary holds up well to the higher heat and adds a great flavor to the “crust” or the “bark” of the roast.
  • Mix all of the ingredients well and rub the roast. Place the roast on a platter, wrap with plastic wrap and refrigerate until you are ready to cook. I let mine sit overnight in this case.

You Don't Need A Lot Of Smoke

  • Some people love a heavy smoke taste to all of their meats. To be honest, I kind of get burned out (pun intended) to the taste of smoke after a few good barbecues. As a result, I sometimes don’t even add any wood to my smoker when cooking large cuts of meat like this sirloin tip. The charcoal adds just enough taste, combined with the rub, to make an awesome roast. In my opinion, the heavier smoke added by wood would overpower the roast. If you really feel the need to add wood, I would suggest using only a chunk or two the size of your fist for the first 30 – 45 minutes of cooking. The searing process we are going to do to lock in the moisture will prevent a lot of that smoke from penetrating the meat anyway, so 30 – 45 minutes should suffice to add a little more flavor if you feel it is necessary.

Let's Roast The Roast- Step By Step

  • Remove the roast from the refrigerator an hour before cooking and allow it to come to room temperature on the kitchen counter. This is an important step that some people overlook, but you won’t, right?? In order to cook this sirloin tip roast evenly, we want the inside to warm, so resting the meat on the counter before cooking is essential. No short cuts!
  • While the roast is resting, let’s go ahead and get the smoker going. Fill your chimney (no lighter fluid on my watch!) with charcoal and light her up. Let it burn until the top coals start to show white ash.
  • While the chimney coals are burning , form a “bowl” or a ring of unlit charcoal around the edges of your fire box. This will allow the coals to burn slowly from the inside to the outside of the fire basket.
  • Once the coals in the chimney are ready, carefully pour the coals into the middle of your “bowl”. Here’s a visual of my fire basket ready to go
  • With the fire burning, set your smoker up for at least 325, up to 350. Mine bounces between those temps, which is fine. We want to cook to the internal temperature of the meat, not a precise time anyway.
  • While the smoker is heating up, we need to sear the sirloin tip. I like to use my gas grill for this because it creates great looking grill marks, but you can certainly do it on the stove using a skillet and some oil.
  • Once the roast has rested for an hour, sear all sides over a hot grill or on the stove. If you are using a grill, turn it halfway through each side to make those great grill marks, presentation is everything!
  • With ALL of the sides seared, place the roast on the smoker over a pan of beef broth or water. We want gravy, right? So we need to catch those drippings! Besides that, it provides great moisture to our cooker. Add water as necessary throughout the cooking time.
  • Continue to cook the sirloin roast until a meat thermometer registers 130 degrees at the CENTER of the roast for medium rare at the center, medium on the ends. This should take around 20 – 30 minutes per pound, but never rely on exact times. Use a meat thermometer instead.
  • Once the roast has reached an internal temperature of 130 degrees, remove from the smoker and place on a platter.
  • Loosely cover the sirloin tip roast with aluminum foil and allow the meat to rest for 30 minutes. This allows the juices to redistribute in the meat, so that they don’t all run out when you slice into that delicious roast.
  • While your roast is resting, go make some gravy with the drippings!
  • After a proper resting, slice the roast beef thinly against the grain and serve. Enjoy!