To begin, preheat your oven to 150°C. Combine the spice mix, white vinegar, citrus juices, garlic cloves, salt, and 1 cup of water in a blender. Blend until the mixture becomes a smooth, vibrant paste bursting with flavours.

Next, place the trimmed pork shoulder in a baking dish. Generously coat the pork with the blended mixture, ensuring every inch is covered with the aromatic marinade. To seal in all the deliciousness, tightly cover the dish with foil or a snug-fitting lid.

Now, it's time to let the magic happen. Bake the pork in the oven for 3½ to 4½ hours, or until the meat becomes tender and effortlessly pulls away with tongs. If you find that there is excess liquid in the dish after the initial cooking time, simply remove the lid or foil and continue baking until some of the liquid evaporates. Finally, season the pork with additional salt to taste, enhancing the already incredible flavours.

Once cooked, your slow-cooked pork is ready to be enjoyed! The meat can be refrigerated for up to 3 days, allowing you to savour its scrumptiousness whenever desired. Gather your loved ones around the table and assemble your feast—warm tortillas, fresh toppings, and all the fixings you desire. Get ready to relish in a culinary journey that will leave everyone craving for more.