-
1
Heat the oil in a medium saucepan over high heat, add the onion, and cook until soft, 3 to 4 minutes. Add the zest, juice, and thyme; bring to a boil; and cook, stirring occasionally, until thickened and reduced to approximately 1/2, cup, 20 to 25 minutes.
-
2
Strain the mixture into a bowl and whisk in the syrup, soy sauce, and pepper. Let cool to room temperature. The glaze can be made 2 days in advance, covered, and refrigerated. Bring to room temperature before using.
-
3
Brush the glaze on the chicken breasts during the last minute of grilling. Remove from the grill, place on a platter, and brush with more of the glaze. Tent loosely with foil and let rest for 5 minutes. Garnish with the green onions before serving.
-
4
Heat your grill to high.
-
5
Place the chicken between 2 pieces of plastic wrap and, using a meat mallet or the bottom of a heavy saute pan, pound the chicken lightly to an even 1/2-inch thickness.
-
6
Brush the breasts on both sides with the oil and season with salt and pepper. Place the breasts on the grill, skin side down, and cook until golden brown and slightly charred, 4 to 5 minutes. Flip the chicken over and continue grilling until just cooked through, 3 to 4 minutes longer. An instant-read thermometer inserted into the center should register 155u00b0F.
-
7
Remove from the grill, tent with foil, and let rest for 5 minutes before serving.
