01 -
In a large saucepan, melt 1/2 cup (1 stick) unsalted butter over medium heat. Whisk in 1/4 cup all-purpose flour and cook for 1-2 minutes, stirring constantly, until a smooth paste forms. This is the foundation for your Ultimate Slow Cooker Mac and Cheese sauce.
02 -
Gradually whisk in 1 (12-ounce) can evaporated milk and 3 cups whole milk until smooth. Add 4 ounces cream cheese, softened and cut into cubes. Continue whisking over medium heat until the cream cheese is fully melted and the sauce begins to thicken slightly, about 5-7 minutes.
03 -
Stir in 1 tbsp Dijon mustard, 1 tsp garlic powder, 1/2 tsp onion powder, 1/2 tsp smoked paprika, 1 tsp kosher salt, 1/2 tsp black pepper, and 1/4 tsp cayenne pepper (if using). These aromatic flavor boosters are key to the rich taste of your Ultimate Slow Cooker Mac and Cheese.
04 -
Remove the saucepan from heat. Gradually add 2 cups (8 ounces) sharp cheddar cheese, 1 cup (4 ounces) Gruyère cheese, and 1 cup (4 ounces) Monterey Jack cheese, stirring until completely melted and smooth. Reserve a small amount of cheese for garnish if desired.
05 -
Pour the cheese sauce into a 6-quart slow cooker. Add 1 lb uncooked elbow macaroni and stir well to ensure all pasta is fully coated and submerged in the sauce. This step is crucial for even cooking of your Ultimate Slow Cooker Mac and Cheese.
06 -
Cover the slow cooker and cook on LOW for 2.5 to 3 hours, or until the macaroni is tender. Stir gently halfway through cooking (around 1.5 hours) to prevent sticking and ensure even distribution of ingredients.
07 -
Once cooked, turn off the slow cooker and let the mac and cheese rest, covered, for 15-20 minutes. This allows the sauce to thicken further. Garnish with 2 tbsp fresh parsley, chopped, and serve warm.