
Heat the oven to 400°F and cook the macaroni 2 minutes less than the package time; drain.
Melt the butter in the same pot, whisk in the flour for 1 minute, then slowly whisk in the milk and simmer 4 minutes until thick.
Turn off the heat and stir in the cheddar and half the jack cheese until smooth.
Toss the shredded chicken with the buffalo sauce. Scoop out a plain mac portion for anyone who doesn't like spice, then fold the chicken into the rest.
Spread in a baking dish, top with the remaining jack, and bake 12 to 15 minutes until bubbly and heated through to 165°F; finish with sliced green onions.
Photo: DinnerDrop