Slow Cooker Asian Pulled Pork

Name: Slow Cooker Asian Pulled Pork
Ingredients: 4 - 4.5 pounds pork butt ( or pork shoulder); oil (, to coat pork); salt (, for seasoning pork); 15 oz. diced or crushed tomatoes; 5-6 cloves garlic (, minced); 1 onion (, diced); 1.5 inch knob fresh ginger (, finely grated or minced (about 2 Tablespoons (30ml))); 1/4 cup fish sauce (, or soy sauce (but fish sauce tastes better! try it) For Gluten Free use Tamari); 2 Tablespoons chili garlic sauce (, or Gluten Free Hot Sauce); 1 Tablespoon spicy brown mustard; 1/4 cup brown sugar; 1 teaspoon fresh cracked black pepper (, plus more for seasoning pork)