Step 1

In a heavy bottom large pot, melt the butter over medium heat.

Step 2

Whisk in the flour and cook for about 1-2 minutes until well combined and smooth.

Step 3

Gradually whisk in the half and half, making sure there are no lumps.

Step 4

Cook the mixture for about 5-7 minutes, stirring constantly, until it thickens and comes to a simmer.

Step 5

Reduce the heat to low and stir in the shredded white cheddar cheese, salt , black pepper, and mustard powder. Mix until the cheese is melted and the sauce is smooth and creamy.

Step 6

Add the cooked cavatappi pasta to the pot and stir until the pasta is evenly coated with the cheese sauce.

Step 7

Taste and adjust the seasonings to your liking.

Step 8

Serve the mac and cheese hot and enjoy!.