Step 1

Mash together the garlic and chiles using a mortar and pestle or the flat side of a large knife. Heat the oil in a wok or large skillet over medium-high heat. Add the garlic mixture. Cook, stirring, until the garlic is just golden, about 20 seconds.

Step 2

Add the chicken; cook, stirring often, until the chicken is cooked through, about 4 minutes. Stir in the fish sauce, soy sauce, sugar, and 1 1/2 teaspoons pepper. Add the basil; cook, stirring constantly, 1 minute. Season with more pepper, if desired. Serve over rice. Garnish with basil.