Sinigang (Filipino Sour Soup) - Alton Brown

Ingredients

• 2 pounds pork spareribs, cut crosswise into 2-inch pieces
• 1 large yellow onion, diced
• 6 cloves garlic, sliced
• 2-inch piece ginger, peeled and julienned
• 3 whole Roma tomatoes, diced
• 2 tablespoons fish sauce
• 2 teaspoons kosher salt
• 1 teaspoon freshly ground black pepper
• 8 cups water
• 5 ounces tamarind concentrate
• 1 teaspoon citric acid crystals
• 10 ounces daikon radish, peeled and thinly sliced
• 10 ounces baby bok choy, well cleaned and quartered lengthwise