I remember the first time I made this from scratch — the smell of real cheese melting into warm milk hit me like a hug from my nana. This isn't that neon-orange boxed stuff; this is rich, velvety white cheddar sauce clinging to every curve of the pasta, bubbling away in the oven until the top is golden and begging you to dive in with a spoon. Honestly, once you try this, you'll never go back. It's comfort food that feels like home, even if your kitchen's a mess and you're wearing mismatched socks.
Don't you dare use pre-shredded cheese — it's coated in anti-caking stuff that'll make your sauce grainy. Grate it fresh, okay? And if you burn the roux, just start over. I've done it three times in one night and still ended up with something delicious. Oh, and use whole milk if you can; skim milk is just sad in mac and cheese. Trust me, I learned that the hard way.