Whisk together soy sauce, hoisin sauce, chili paste, garlic and ginger in a small bowl. Reserve ½ of the marinade in a bowl.
¼ cup soy sauce, ¼ cup hoisin sauce, 1 teaspoon chili paste, 2 cloves garlic minced, 1 teaspoon minced fresh ginger
In another large bowl, combine pork pieces and ½ of marinade. Marinate for at least 15 minutes - overnight is best.
1 lb pork tenderloin cut into cubes
Heat the grill to medium heat.
Thread pork, bell pepper, onion and pineapple pieces onto skewers. Discard any leftover marinade from the pork.
1 orange bell pepper cut into pieces, 1 pint grape tomatoes, 1 red onion cut into wedges, 1 pineapple cut into large chunks
Place skewers on the grill.
Grill for 5 minutes. Brush with reserved marinade and turn over. Grill an additional 5 minutes. Brush with reserved marinade and grill for 25 additional minutes turning occasionally to prevent burning or until pork is fully cooked.
**If using bamboo skewers, soak in water for 30 minutes before using.