Preheat oven to 300 degrees F.
Line a baking sheet with parchment paper.
Sprinkle the ribs with salt on both sides and lay them flat on the baking sheet so they curve down.
In a small bowl, mix together the rest of the ingredients, except lemon juice, until they form a thick paste.
Rub the spice paste on top of the ribs until they are evenly coated.
Bake the ribs for 2.5-3 hours until they are juicy in the inside, and crispy on the outside.
Cut spare ribs into sections.
If you want crispier ribs, broil them for 4-5 minutes.
Sprinkle with lemon juice before serving.