Crispy Pork Gyros

Name: Crispy Pork Gyros
Prep time: 30 min
Cook time: 3 h 20 min
Total time: 3 h 50 min
Cuisine: Greek
Ingredients: ½ tsp celery salt; 1 tsp ground cumin; ½ tsp garlic salt; 2 tsp ground coriander; 1 tsp dried oregano; 1 tsp dried thyme; 1 tsp paprika; 1 tsp salt; 1 tsp black pepper; 1.8 - 2 kg (4 - 4.5lb) boneless rolled pork shoulder joint with rind; 3 tbsp vegetable oil; 4 cloves garlic (peeled and minced); 3 cups hot chicken/pork/vegetable stock ((use bouillon for gluten-free)); 6 warm Greek pita breads; 1 shredded lettuce (I use O'So Sweet variety); 16 cherry tomatoes (quartered); 1 small red onion (peeled and thinly sliced); Tzatziki (- try my homemade tzatziki); small portion approx 150g/2 cups cooked french fries (optional)