Vietnamese Caramelized Pork

INGREDIENTS

• 1 tablespoon vegetable oil
• 1 cup white sugar
• 2 pounds pork spareribs, cut into 1-inch pieces
• 2 green onions, cut in 2-inch lengths
• 1 green chile pepper, chopped
• 1 teaspoon ground black pepper
• 2 shallots, finely chopped
• 2 cloves garlic, minced
• salt to taste
• 1 teaspoon Asian (toasted) sesame oil
• 1 tablespoon green onion, thinly sliced and separated into rings