Step 1

Cook elbow macaroni for 4 minutes, then drain. This will likely be less time than the box says to cook it for, but we want to undercook it.

Step 2

Lightly spray the insert of a 6 quart or larger slow cooker with nonstick cooking spray, and add cooked pasta.

Step 3

Top with olive oil and butter, stirring to combine well.

Step 4

Add all remaining ingredients and stir.

Step 5

Cover and cook on LOW for 2 hours, stirring after one hour. After one hour, the pasta may be slightly stuck, just give it a good stir and it'll loosen up.

Step 6

When the second hour is up, give the mac and cheese a good, solid stir and you'll see the cheesy sauce come together. Taste, adjust seasoning if necessary and enjoy!