Buffalo Chicken Macaroni and Cheese

INGREDIENTS

Kosher salt

1 lb

elbow macaroni

5 tbsp

unsalted butter, divided

3 cups

shredded rotisserie chicken

2 cloves

garlic, minced

3/4 cup

Frank's Buffalo Wing Sauce, divided

2 tbsp

all-purpose flour

2 tsp

dry mustard

2 1/2 cups

half-and-half

3 cups

extra sharp cheddar cheese, shredded

2/3 cup

sour cream

1/2 cup

crumbled bleu cheese or gorgonzola