Grown-Up Mac & Cheese – – butter, all purpose flour, milk (whole ), cheese (Beecher’s Flagship, grated (order it online or substitute cheddar)), salt, chili powder, garlic powder, pasta (penne ), salt (to taste), Hatch chiles (fire-roasted, diced, or canned green chiles), red bell pepper (fire-roasted, diced), corn (fire-roasted and kernels removed from the cob), chili powder (to taste for topping), To prepare the sauce, melt the butter in a heavy saucepan (we use Le Creuset) over medium heat and add flour. Wisk and cook for about 2 minutes. Slowly add milk, whisking constantly, and cook for about 10 minutes. It will thicken. ; Remove from heat and add cheese, salt, chili powder and garlic powder. Stir until the cheese is melted and the ingredients are incorporated. Add the chiles, bell pepper and set aside.; Preheat the oven to 350 degrees F. Grease an 8-inch baking dish. ; In a pot of boiling water, cook the penne very al dente (about 2 minutes less than the package directions). Rinse the pasta in cold water to stop the cooking and drain well. ; Combine the pasta and sauce and mix thoroughly. Pour the pasta and sauce mixture into the prepared baking dish. Sprinkle with chili powder. ; Bake uncovered for 20 minutes. Let stand 5 minutes before serving. ; –