Step 1: First things first, go ahead and preheat your oven to a cozy 375°F (190°C). While it's warming up, lightly grease a 9x13 inch baking dish. This makes sure our cheesy goodness won't stick!
Step 2: Next, get your elbow macaroni cooking! Follow the package directions for al dente pasta, then drain it really well and set it aside. You don't want mushy pasta in your mac & cheese, trust me.
Step 3: Now for the magic: in a large saucepan, melt your butter over medium heat. Once it's shimmering, whisk in the flour and cook this mixture, stirring constantly, for about 1-2 minutes until it's lightly golden. This is your roux, and it's key to a smooth sauce!
Step 4: Slowly, I mean gradually, pour in the whole milk and the Oktoberfest beer, whisking like crazy the entire time. Keep whisking until that sauce is wonderfully smooth and starts to thicken up nicely. It's so satisfying to watch!
Step 5: Reduce the heat to low, then it’s time for the cheese! Stir in your sharp cheddar and Gruyere cheese until they are completely melted and the sauce is lusciously smooth. This is where the real flavor party begins!
Step 6: Season your glorious cheese sauce with the mustard powder, a good pinch of salt, and some freshly ground black pepper. Give it a good stir to make sure everything is perfectly combined. This mustard powder trick really brings out the cheese flavor without making it taste like mustard, a little secret I love to share.
Step 7: Gently fold in your cooked macaroni and those irresistible crumbled bacon bits until every single noodle is coated in that creamy, cheesy, bacon-y sauce. Oh, the aroma!
Step 8: Carefully transfer the macaroni mixture into your prepared baking dish, spreading it out evenly so every bite gets its share of cheesy goodness.
Step 9: For that perfect golden crunch, grab a small bowl and mix your breadcrumbs with a little extra salt and pepper. Sprinkle this magical topping evenly over the mac & cheese. It’s going to be so good!
Step 10: Pop your dish into the preheated oven and bake for about 25-30 minutes, or until you see it bubbling around the edges and the breadcrumb topping is beautifully golden brown. That's how you know it's ready! If you’re a fan of rich, comforting casseroles, you might also enjoy a hearty creamy chicken alfredo tater tot casserole for another family favorite.
Step 11: Once it’s out of the oven, let it stand for just a few minutes before you dive in. This helps the sauce set up just a tiny bit.
Step 12: If you're feeling fancy, sprinkle some freshly chopped parsley over the top before serving. It adds a lovely fresh contrast to the richness.