Preparation
Step 1
Cook macaroni according to package directions, adding 2 minutes to the maximum time listed on the package.
stir butter into macaroni until butter is melted.
Step 2
While macaroni is boiling, shred both cheese blocks using a box grater. Combine shredded cheese until evenly mix, then set aside about half of shredded cheese mixture for later.
8 oz extra-sharp white cheddar cheese, 8 oz mild cheddar cheese
In a large bowl, whisk together mascarpone and evaporated milk until smooth (there may still be some lumps, which are okay).
Step 3
Mix in the whole milk, followed by the salt, creole seasoning, mustard powder, and nutmeg. Stir in half of the shredded cheese mixture.
Step 4
Taste mixture to see if seasonings are to your preference and adjust if necessary. Stir in beaten egg.
Step 5
Add buttered macaroni to milk/cheese mixture and stir to combine. Pour the whole mixture into your prepared casserole dish.Sprinkle remaining shredded cheese evenly over the top, followed by some fresh cracked pepper, if you like.
fresh cracked pepper
Step 6
Bake in preheated oven for 30-35 minutes or until cheese on top is melted and browned, and filling is bubbling. Cool slightly before serving.