If using whole chicken breasts, pat dry and cut into 1" dice. Season all over with a pinch of salt. Follow same instructions as diced chicken.
If using jumbo shrimp, follow same instructions as chicken in Steps 1 and 3, cooking undisturbed until opaque and shrimp reaches a minimum internal temperature of 145 degrees, 2-3 minutes per side. Remove to a plate, stirring shrimp back into sauce at the end of Step 4.