My brother begs for this 4 ingredient side dish every single weekend. Ultra cheesy, rich, and absolutely impossible to mess up.

This 4-ingredient baked macaroni and cheese is the side dish my brother begs for every single weekend. It’s ultra cheesy, rich, and honestly impossible to mess up—even on the busiest weeknights. I grew up on this style of Midwestern, no-fuss baked mac: just pasta, real cheese, milk, and butter. No roux, no fancy gadgets, no extra dishes. You stir everything right in a glass baking dish, slide it into the oven, and out comes a bubbling, golden pan of comfort that looks exactly like those gooey, browned-edge casseroles we all grew up eating.

This mac and cheese is a hearty side that pairs perfectly with grilled or baked chicken, burgers, meatloaf, or a simple roasted veggie tray. I like to serve it with something fresh and crunchy on the side—like a big green salad with a tangy vinaigrette or steamed broccoli—to balance the richness. It also holds up really well on a potluck table next to pulled pork, baked beans, or roasted ham. If you’re doing a casual weekend dinner, set the hot glass baking dish right in the middle of the table with a big spoon and let everyone help themselves.

Servings: 6

12 oz dry elbow macaroni (about 3 cups)

Preheat your oven to 350°F (175°C). Lightly butter a 9x13-inch glass baking dish, making sure to get into the corners. The scratches and wear on the dish don’t matter—this is real-life, weeknight cooking.

Bring a large pot of salted water to a boil. Add the elbow macaroni and cook for 1–2 minutes less than the package directions for al dente (you want it quite firm, since it will keep cooking in the oven). Drain the pasta well.

Spread the hot, drained macaroni evenly into the prepared glass baking dish. Scatter the butter pieces over the warm pasta so they start to melt and coat the noodles.

Sprinkle 3 cups of the shredded sharp cheddar cheese evenly over the macaroni, tossing gently with a spoon right in the baking dish to work some of the cheese down between the noodles. It doesn’t have to be perfect; clumps of cheese just mean extra gooey bites later.

Pour the whole milk evenly over the cheesy pasta. Use the back of a spoon to gently press the noodles down so they’re mostly submerged in the milk-cheese mixture. You should see milk peeking through but not completely covering the pasta.

Top the dish with the remaining 1 cup of shredded cheddar, spreading it all the way to the edges. This is what gives you those crispy, browned edges and extra cheesy top that everyone fights over.

Place the glass baking dish on a rimmed baking sheet (helpful if your dish is very full) and bake, uncovered, for 35–45 minutes, or until the milk is mostly absorbed, the cheese is melted and bubbling, and the top is golden with browned, crispy spots around the edges.

Let the baked macaroni and cheese rest for 10 minutes before serving. This short rest helps the sauce thicken up and makes it easier to scoop clean squares while keeping the inside ultra gooey and cheesy.

To keep this truly 4 ingredients, I skip the spices, but at home I’ll sometimes add a pinch of salt and black pepper or a little garlic powder to the pasta before baking. You can swap part of the sharp cheddar for mild cheddar or Colby Jack for a slightly milder, creamier flavor, but avoid very low-fat cheese or milk, which can make the sauce grainy or thin. For extra richness, replace 1 cup of the whole milk with half-and-half or heavy cream. If you like a bit of texture, you can sprinkle a handful of crushed buttery crackers or plain breadcrumbs over the top along with the final layer of cheese. To prep ahead, you can assemble the dish up to the point of baking, cover tightly, and refrigerate for up to 24 hours; add 5–10 minutes to the baking time and make sure it’s bubbling hot in the center. For food safety, always refrigerate leftovers within 2 hours of baking, store them in an airtight container, and reheat thoroughly to 165°F before eating. Because this uses dairy and cooked pasta, don’t leave the dish out at room temperature for extended periods—especially at potlucks. If reheating in the oven, cover with foil and add a splash of milk to keep it from drying out.