Crockpot Mac and Cheese

Why This Crockpot Mac and Cheese Works

As the slow cooker warms up, the dry macaroni starts soaking up the milk and evaporated milk. The pasta slowly pulls in the liquid instead of boiling hard in water, so it softens gently and keeps more of the creamy stuff inside each piece. Over a couple of hours, the starch from the macaroni leaks out into the milk and cheese and the whole thing starts to thicken.

While everything cooks, the shredded cheddar and Monterey Jack melt and slide into all the spaces between the pasta. The melted butter mixes in with the cheese and coats the noodles, so they stay smooth instead of clumping together. With low, steady heat, the sauce doesn’t break or go grainy; it just slowly turns into a thick, cheesy blanket around the macaroni.

By the time it finishes, the pasta is tender but not mushy, and the sauce has tightened up enough to cling to every elbow. A quick stir at the end evens out any thicker spots and gives a creamy pot of mac and cheese straight from the slow cooker.

Mistakes To Avoid

Letting this cook way past the 2–3 hour window on low often turns the pasta mushy and blown out. The macaroni keeps soaking up liquid and swelling, while the cheese sauce tightens and starts to separate, so the whole pot becomes thick, pasty, and greasy instead of creamy.

Starting with high heat instead of low can cause the cheese and milk to scorch on the bottom before the pasta softens. The sauce then gets grainy and clumpy, and the edges of the crock can form a hard, overcooked ring while the center is still uneven.

Skipping the stirring during cooking leaves pockets of dry pasta and clumps of cheese. The noodles sitting on top may stay a bit tough and chalky, while the ones buried in the sauce turn very soft, so the texture jumps from undercooked to almost falling apart in the same batch.

Using pre-shredded bagged cheese in place of freshly shredded cheese often makes the sauce less smooth. The anti-caking powder on the shreds keeps them from melting evenly, so the mixture can look curdled and stringy instead of melting into a thick, even sauce.