Step 1: Prepare Your Ingredients - Start by gathering all your ingredients and measuring them out. This will make the cooking process much easier and faster.
Step 2: Mix Everything in the Crock Pot - In your Crock Pot, combine the uncooked elbow macaroni, butter, grated sharp cheddar cheese, sour cream, condensed cheddar cheese soup, salt, milk, dry mustard, and ground black pepper. Stir well to ensure everything is evenly distributed.
Step 3: Set Your Crock Pot - Cover your Crock Pot with the lid and set it to low heat. Let it cook for about 2 to 3 hours. Be sure to stir occasionally to prevent the macaroni from sticking to the sides and to allow the cheese to melt evenly.
Step 4: Check for Doneness - After 2 hours, check the macaroni for doneness. The pasta should be tender and the cheese sauce should be creamy. If it needs more time, cover and continue cooking, checking every 15 minutes.
Step 5: Serve and Enjoy! - Once the mac and cheese is cooked to perfection, give it one last stir and serve it hot. Enjoy your creamy, dreamy, homemade Crock Pot Mac And Cheese!