Easy! To make Baked Macaroni and Cheese, start by preheating your oven to 350 degrees and spray a 9 x 13 pan with non-stick spray.
While you are making your cheese sauce, start a large pot of salted water to boil. Once boiling, cook your elbow macaroni pasta per your package instructions, minus 2 minutes. Once cooked, drain your pasta and set aside.
To make your cheese sauce, add your butter to a large skillet and melt over medium high heat and once your butter is melted, add in the flour.
Whisk together and continue whisking while your flour cooks for 1-2 minutes before slowly pouring in the milk and chicken stock. Whisk together to combine and break up any flour clumps.
Add in spices, salt and pepper and bring to a low boil, stirring often. Once boiling, turn heat down to medium and stir in the Parmesan cheese and 3/4 of the sharp cheddar cheese and continue to stir until all of your cheese has melted.
Pour your cooked pasta into your cheese sauce and stir to combine. Move your macaroni and cheese to your prepared baking pan, sprinkle the top of your mac and cheese with reserved cheddar cheese and bake for 25 minutes.
Remove your baked mac and cheese from oven and let sit for 10 minutes before serving. I know waiting is hard but that molten lava cheese sauce needs time to cool a bit and set up :) Trust me, wait the 10 minutes!