Step 1In a large pot, bring 8 cups of water to a boil. Add the rice and stir gently until the water returns to a boil. Lower the heat to a gentle boil, add one-half teaspoon salt and continue to cook for 15 minutes. The rice should be cooked but still firm. Remove from heat and set aside, uncovered, for 15 minutes, up to an hour. The rice will continue to soften and absorb water as it sits. (If you want the grains very soft and broken, use a little more boiling water and boil for 30 minutes rather than 15.)
Step 2While the rice is cooking, heat a skillet or wok over medium heat until hot. Add the oil, and when it is hot, add the garlic and stir-fry until it begins to color. Add the ground pork and one-quarter teaspoon salt and stir until the pork is cooked through, 3 to 4 minutes. Remove from heat, place in a bowl and set aside.
Step 3Place the garnishes (roasted peanuts, chopped chiles, chopped green onion, cilantro and pickled vegetables) in small bowls or in separate piles on a platter.
Step 4Just before serving, stir the cooked rice gently. If you find the congee too thick, add boiling water one-half cup at a time to achieve the desired consistency. Transfer to a serving bowl. Ladle the hot congee into individual soup bowls at the table.
Step 5Place the bowl of sauteed pork and garlic on the table, along with a small bowl of soy sauce, salt and pepper, and the platter or bowls of other accompaniments so that the guests can help themselves as they please.