To prepare a vietnamese baked chicken recipe, first you need to prepare the ingredients. First, you will need the following ingredients: 2 tbsp. sriracha - 2 tablespoons. 12 cup chile flakes (optional) 1 tablespoon paprika 1 teaspoon ground cumin 1/2 teaspoon thyme 1/2 cup water 1 pound chicken breasts, cut in half, skin side down, with the breast halves facing each other, season with salt and pepper. Bake the chicken in the preheated oven for 20 to 25 minutes, or until the internal temperature reaches 165 ?F.