Mac And Cheese Grilled Cheese Sandwich Recipe: Double Cheese Decadence

This recipe combines two comfort food classics into one indulgent creation. The mac and cheese provides a creamy, cheesy filling that transforms a simple grilled sandwich into something extraordinary.

I’ve perfected the technique for achieving a golden, crispy exterior while keeping the inside gooey and rich. The result is a double cheese decadence that satisfies even the most intense cravings.

Ingredients for Mac and Cheese Grilled Cheese Sandwich

Indulgent comfort meets cheesy perfection with these carefully selected ingredients for ultimate decadence.

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The cheese selection is paramount for this dish. Sharp cheddar provides the classic flavor base, while Gruyère adds nutty complexity. Parmesan delivers the umami depth that elevates the mac and cheese filling. Source blocks from a specialty cheese counter—pre-shredded contains anti-caking agents that make the sauce grainy. For the vegetarian Worcestershire, Annie’s or Edward & Sons are reliable brands.

No Gruyère? Fontina or Monterey Jack melt beautifully as substitutes. For the milk, whole is essential—lower fat versions won’t create a properly creamy sauce. The sourdough can be swapped for ciabatta or brioche, but avoid flimsy sandwich bread. If you only have one cheese type, use 3 cups cheddar and add a pinch of mustard powder for complexity.

The mac and cheese filling can be made 2 days ahead and refrigerated. Assemble sandwiches just before cooking. Leftovers keep 3-4 days refrigerated, though they’re best fresh. The cooked macaroni will absorb sauce as it sits, so add a splash of milk when reheating to restore creaminess.

Step-by-Step Instructions for Mac and Cheese Grilled Cheese Sandwich

Master the technique for this indulgent creation with precision and finesse.

Step 1: Cook the Elbow Macaroni to Al Dente

Bring a large pot of salted water to a rolling boil. Add the 8 oz Elbow Macaroni and cook according to package instructions until al dente, typically 1 minute less than the suggested time. Drain immediately and set aside.

The pasta should have a slight resistance when bitten—it will continue cooking slightly when combined with the hot cheese sauce later. Avoid overcooking, as mushy pasta will compromise the texture of your final dish.

Step 2: Prepare the Cheese Sauce with a Roux Base

In a large saucepan over medium heat, melt 2 tbsp Unsalted Butter. Once melted, whisk in the 3 tbsp All-Purpose Flour to form a smooth roux. Cook for 1-2 minutes, stirring constantly, until the mixture turns a light golden color.

Gradually whisk in the 2 cups Whole Milk, ensuring no lumps form. Stir in the 1 tsp Dijon Mustard, 1 tsp Worcestershire Sauce, 1 tsp Salt, and 0.5 tsp Black Pepper. Bring to a gentle simmer, then reduce heat to low.

Slowly add the 2 cups Sharp Cheddar Cheese, 1 cup Gruyère Cheese, and 0.5 cup Parmesan Cheese, stirring until each addition is fully melted and the sauce is smooth. The sauce should coat the back of a spoon thickly.

Step 3: Combine Macaroni and Cheese Sauce

Add the cooked Elbow Macaroni to the cheese sauce and stir until every piece is evenly coated. If the sauce appears too thick, add a splash of warm milk to loosen it slightly.

Transfer the mixture to a shallow dish and spread it out to cool slightly. This step ensures the macaroni and cheese holds its shape when assembled into sandwiches. Allow it to cool for 10-15 minutes at room temperature.

Step 4: Assemble and Grill the Sandwiches

Lay out the 8 slices Sourdough Bread and lightly butter one side of each slice with the remaining 2 tbsp Unsalted Butter. Sprinkle the unbuttered sides with 0.5 tsp Garlic Powder for added flavor.

Place a generous portion of the macaroni and cheese mixture between two slices of bread, buttered sides out. Heat a large skillet or griddle over medium-low heat. Once hot, add the sandwiches and cook for 3-4 minutes per side until the bread is golden brown and the cheese inside is fully melted.

Press down gently with a spatula during cooking to ensure even contact with the heat source. The sandwiches are done when the exterior is crisp and the filling is gooey and thoroughly heated through.

Serving Suggestions for Leftovers

Plating for Impact

I love serving these sandwiches on a wooden cutting board for rustic presentation. Cut diagonally for maximum cheese pull visibility. The golden crust contrasts beautifully against dark wood. 💛

Dipping Sauces

A simple tomato soup shot glass makes a playful pairing. For adults, a spicy marinara with ½ tsp red pepper flakes adds kick. I’ve also served with sriracha mayo—mix 2 tbsp mayo with 1 tsp sriracha.

Garnish Ideas

Fresh chopped chives or parsley add color and freshness. A light dusting of smoked paprika enhances the cheesy aroma. For extra decadence, drizzle with truffle oil just before serving.

Side Pairings

Balance the richness with a crisp green salad tossed in lemon vinaigrette. I prefer arugula for its peppery bite. Pickles or pickled jalapeños cut through the creaminess perfectly. 🌟

Temperature Tips

Serve immediately while the cheese is still gooey. If making ahead, keep warm in a 200°F oven on a wire rack to prevent sogginess. The sandwiches stay crisp for about 15 minutes out of the pan.

Portion Control

One sandwich is plenty for most people, but I always make extra. These disappear fast at gatherings. For a lighter meal, serve half a sandwich with a side of roasted tomatoes or sautéed greens.