Seriously Cheesy Delicious Mac & Cheese

In a large pot, boil cavatappi pasta in salted water until just al dente. Drain, toss, and set aside.

Over medium heat, melt butter and whisk in flour. Cook for 3 to 4 minutes, whisking constantly until lightly golden. Whisk in milk and bring to a simmer until the mixture is thickened. Remove from heat. Whisk in shredded sharp cheddar one handful at a time until completely melted. Stir in black pepper, salt, onion, mustard, and garlic powder. Add in cooked noodles and toss to coat. Taste test and adjust seasoning if needed. 

Spray a 9 x 13 glass pan with nonstick butter spray and pour in pasta mixture. Top with additional shredded cheese and sprinkle with chives. Bake on grill at 350° for 20 minutes or until the cheese is bubbling. Remove from heat, rest for 10 to 15 minutes, and serve.