2In a blender, combine the Achiote paste, 200g of Sour orange juice, Garlic, Mexican oregano, Cumin, Black peppercorns, Allspice berries, Clove, and 10g of Salt. Blend until a smooth marinade forms.
3Place the Pork shoulder cubes in a large bowl and pour the marinade over them, ensuring all pieces are well coated. Cover and refrigerate for at least 4 hours, or preferably overnight.