INGREDIENTS
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Olive oil cooking spray (optional)
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1 tablespoon packed dark brown sugar
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1/4 cup plus 2 tablespoons creamy peanut butter
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1 tablespoon toasted sesame oil
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1/4 cup low-sodium soy sauce
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1 tablespoon sriracha sauce
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1 tablespoon rice vinegar
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1/4 cup warm water
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1 tablespoon freshly squeezed lime juice
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2 bunches broccolini (1 pound total)
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4 to 6 thin-cut boneless, skinless chicken breasts or cutlets (1 to 1 1/2 pounds total)