Prepare fries according to package instructions.
While fries are cooking, prepare gravy by combining butter and flour in a small saucepan.
Cook, stirring, until butter is completely melted.
Stir in chicken broth and barbecue sauce; bring just to a boil, reduce heat, and simmer until thickened.
Arrange cooked fries on a large serving tray or individual plates.
Top with cooked chicken, cheese curds, onion, cilantro, and bbq gravy.