Mac N Cheese Recipe With Egg: Ultra Creamy Baked Casserole

I tested this recipe seven times to perfect the balance between creamy texture and rich flavor. The egg creates an ultra-smooth custard that transforms simple ingredients into something extraordinary.

What sets this version apart is the baking step, which develops a golden top while keeping the interior creamy. The egg binds everything together without making it dense, and sharp cheddar adds depth.

You’ll end up with a casserole that’s rich yet light, with perfectly al dente noodles suspended in velvety cheese sauce. It’s the kind of dish that turns a simple weeknight into a comfort food celebration.

This works beautifully as a main course or hearty side. The leftovers reheat just as well the next day.

Ingredients for Mac N Cheese Recipe with Egg

Simple pantry staples combine with sharp cheddar and an egg for that signature creamy texture.

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The cheese is what makes or breaks this. Cabot or Tillamook sharp cheddar have the right melt and tang. Block cheese shreds better than pre-shredded (which has anti-caking agents). Whole Foods has great options if you’re willing to spend a bit more. The egg binds everything without making it heavy—fresh, large eggs work best here.

No sharp cheddar? Colby-Jack or Monterey Jack work at a 1:1 ratio. Milk can be 2% if that’s what you have, but whole makes it creamier. No Dijon? Yellow mustard at the same amount works in a pinch. The dry mustard is optional but adds depth—skip if you don’t have it (the dish will still be great).

Assemble the casserole right before baking for best texture. Leftovers keep in the fridge for 4-5 days and reheat beautifully. Freezes well for up to 3 months—just thaw overnight before reheating.

Step-by-Step Instructions for Ultra Creamy Baked Macaroni and Cheese

This method ensures a rich, velvety texture with a golden, bubbling top.

Step 1: Cook and Prepare the Macaroni

Bring a large pot of salted water to a rolling boil. Add the 12 oz Elbow Macaroni and cook until al dente, about 1 minute less than the package instructions. The pasta will finish cooking in the oven, so undercooking now prevents a mushy texture later.

Drain the macaroni thoroughly in a colander and rinse briefly with cool water to stop the cooking process. Transfer it to a large bowl and set aside. This step is crucial for achieving the perfect bite in your final dish.

Step 2: Make the Cheese Sauce Base

In a medium saucepan, melt the 4 tbsp Unsalted Butter over medium heat. Once melted, add the 3 tbsp All-Purpose Flour and whisk constantly for 1-2 minutes until the mixture turns light golden brown and smells nutty. This roux will thicken your sauce beautifully.

Slowly pour in the 1.5 cups Whole Milk, whisking continuously to prevent lumps from forming. Cook for 3-4 minutes, stirring often, until the mixture thickens enough to coat the back of a spoon. Stir in the 1 tsp Dijon Mustard, 1 tsp Salt, 0.5 tsp Black Pepper, 0.5 tsp Garlic Powder, 0.5 tsp Onion Powder, and 0.5 tsp Dry Mustard.

Step 3: Combine Sauce, Cheese, and Egg

Remove the saucepan from heat and gradually add 1.5 cups of the 2 cups Sharp Cheddar Cheese, stirring until completely melted and smooth. Let the mixture cool for 2 minutes to prevent cooking the egg when added.

In a small bowl, beat the 1 whole Large Egg lightly. Slowly pour the beaten egg into the cheese sauce while whisking vigorously to combine. This step creates a custard-like richness that sets this macaroni and cheese apart.

Step 4: Assemble and Bake to Perfection

Pour the cheese sauce over the cooked macaroni in the large bowl. Add the remaining 0.5 cup Sharp Cheddar Cheese and stir until everything is evenly coated. Transfer the mixture to a greased 9×13-inch baking dish.

Bake in a preheated 375°F oven for 20-25 minutes until the top is golden brown and the edges are bubbling. The center should be set but still slightly jiggly. Let it rest for 5 minutes before serving to allow the sauce to thicken further.

Serving Suggestions for This Recipe

Family-Style Presentation

Serve this directly from the baking dish at the table—it’s how my Irish-Italian family always did it. The golden crust always disappears first, so I

Garnish for Freshness

Sprinkle with chopped parsley or chives for color and a fresh contrast. A pinch of crushed red pepper adds a subtle kick. I also love a final dusting of grated Parmesan for extra depth.

Pair with Simple Sides

A crisp green salad with balsamic dressing cuts through the richness. Or serve with roasted broccoli—toss florets with olive oil and roast at 400°F for 20 minutes. Both keep the meal comforting yet balanced.

For a Crowd

Double the recipe in a 10×15-inch baking dish and bake for 30-35 minutes. This is perfect for Sunday suppers or potlucks. The egg ensures it stays creamy even when scaled up.

Kid-Friendly Serving

Let kids customize with toppings like crushed Ritz crackers or mini pepperoni. I’ve found they’re more likely to try new things when they can add their own touch.

Leftovers Reinvented

Use extras for mac and cheese grilled sandwiches the next day. Just butter bread, add a scoop of leftovers, and grill until golden. It’s a Boston neighborhood favorite. ✨

Frequently Asked Questions