Heat your smoker to 225 degrees F and add your preference of wood chips. I used hickory for this recipe.
After you clean and trim the heart (see directions above), pat dry with a paper towel.
Open the heart and spread the sausage evenly over half of the inside of the heart.
Roll tightly and secure with wooden or metal skewers.
Smoke the heart with an internal probe thermometer stuck in the sausage until the pork temperature reaches 155 degrees F, about 45 minutes to 1 hour. Remove from smoker and let rest for 10 minutes on a cutting board before slicing into ½-inch pieces. Sprinkle slices with salt and pepper and garnish with chopped fresh parsley if so desired.