📖 Instructions

1. Boil the Macaroni: First up, grab a large pot and fill it with water. Add a generous pinch of salt – don't skimp, it seasons the pasta from the inside out! Bring that water to a rolling boil over high heat. Once it’s bubbling like crazy, toss in your elbow macaroni. Stir it well to prevent sticking and cook according to package directions until it's al dente, meaning it's tender but still has a slight bite. For most macaroni, this is usually about 7-9 minutes. Drain the cooked pasta thoroughly in a colander, but don't rinse it! We want that starchy goodness to help the sauce cling.
2. Make the Roux: While your pasta is doing its thing, grab a medium-sized saucepan and melt the unsalted butter over medium heat. Once the butter is fully melted and slightly shimmering, sprinkle in the all-purpose flour. Now, whisk continuously for about 1-2 minutes. You're creating a roux here, which is the base that will thicken our sauce. It should look like a pale, bubbly paste and smell a bit nutty. Don't let it brown too much; we're aiming for a light roux.
3. Whisk in the Milk: Slowly, *slowly* start pouring in the cold whole milk, whisking constantly as you go. Adding cold milk to a hot roux helps prevent lumps, trust me on this! Keep whisking until the mixture is smooth and all the flour lumps have dissolved. You'll notice it start to thicken as it comes to a gentle simmer. Continue to cook, stirring occasionally, for about 5-7 minutes until the sauce is thick enough to coat the back of a spoon. It should have a velvety consistency.
4. Add the Cheese and Seasonings: Reduce the heat to low. Now for the star of the show: the cheese! Add your shredded cheddar and Gruyere cheese (or whatever blend you chose!) to the sauce, a handful at a time, whisking until each batch is melted and smooth before adding more. This gradual melting helps achieve that gorgeous, creamy texture. Once all the cheese is in, stir in the Dijon mustard, a pinch of nutmeg, a generous grind of black pepper, and salt to taste. Remember, the cheeses are salty too, so taste it first! The nutmeg and mustard are our little 'secret ingredients' – they don't make it taste like mustard or spice, but they really enhance the cheesy flavor.
5. Combine Pasta and Sauce: Gently fold the drained, hot macaroni into the cheese sauce. Make sure every single piece of pasta is gloriously coated in that rich, creamy goodness. Stir until everything is combined and heated through. It should be glistening and incredibly appetizing. If it seems a little too thick, you can add a splash of warm milk to loosen it up to your desired consistency.
6. Serve and Garnish: Transfer your creamy pasta mac bowl to individual serving bowls. For an extra touch of freshness and color, sprinkle a little chopped fresh parsley or chives over the top. Serve immediately and get ready to enjoy pure comfort in a bowl! This dish is best enjoyed hot, straight from the stove.