Begin by breaking apart the cold cooked rice to separate the grains and remove any lumps. Day-old rice (pinatuyo) works best as fresh rice can become mushy. Peel and finely mince an entire head of garlic (dikdikin ang bawang), ensuring uniform, small pieces for even cooking.
Heat ¼ cup of neutral cooking oil in a large wok or skillet (kawali) over low heat (kaunting apoy). Add the minced garlic (bawang) and stir constantly until it turns golden brown (kulay ginto), about 2-3 minutes. Watch carefully to prevent burning. Remove the toasted garlic with a strainer, leaving the garlic-infused oil in the pan. Place garlic on paper towels to drain.
Increase heat to high (malakas na apoy), leaving about 2 tablespoons of the garlic-infused oil in the pan. Once the oil is very hot, add the cold rice and spread it in an even layer. Let it toast for 45 seconds without stirring - listen for the "singing rice" sound that indicates it's getting crispy.
Toss the rice and repeat the toasting process 3-4 times. Add back about three-quarters of the toasted garlic, season with salt (asin) and pepper (paminta) to taste. Toss until well combined and heated through.
Transfer to a serving dish and top with the remaining toasted garlic. Optionally garnish with finely chopped green onions (dahon ng sibuyas). Serve hot with your choice of protein and fried egg for a complete silog meal.