Preheat oven to 375 F

Combine seasoning rub ingredients.

Trim any excess fat off the tri tip if desired - pat dry with a paper towel.

Rub the roast evenly with seasoning mixture.

Heat a large cast iron skillet on the stove top over high heat. Once hot, add 1-2 tablespoons avocado oil and sear the roast for 4-5 minutes on each side until browned and a crust forms.

Transfer the hot cast iron skillet with the tri tip to the preheated oven. Bake for 10-15 minutes per pound depending on desired doneness.(see notes) Use a meat thermometer for proper cooking.

For medium rare, remove from the oven at 125℉ when the thermometer is inserted into the thickest part of the meat. The temperature will continue to rise a little as the meat rests.

Once it reaches the desired internal temperature, remove from oven and loosely tent with foil. Allow the roast to rest for at least 10 minutes before slicing.

Transfer tri tip to a cutting board and slice against the grain.

Garnish with fresh chopped parsley and serve.