John Legend's Macaroni and Cheese

I have searched and searched for a good macaroni and cheese recipe. I can't tell you how many I have tried over the years and just not been pleased with.  I decided to try John Legend's recipe a few weeks ago and I think I have finally found one that I really really like! It was baked but also creamy.  It was cheesy but not overwhelmingly so. It's so good!

4 tbsps unsalted butter and extra butter for dish
3 cups elbow macaroni
24 oz evaporated milk
1/3 cup milk
2 large eggs
1/2 tsp seasoning salt
1/4 tsp garlic powder
16 oz  sharp grated cheddar cheese
8 oz grated monterey jack
salt and pepper

Heat oven 375. Grease a 9x13 baking dish with butter. Boil elbow pasta in salt water and drain. Return the pasta to the pot and add butter.  Toss the pasta in the butter until it is melted. In a medium mixing bowl whiskt together the evaporated milk, milk and eggs. Stir in the seasoning salt, garlic powder and pepper. In a separate bowl mix together the cheddar cheese and monterey jack cheese. Place 1/3 of the noodles in the bottom of the baking dish, top with 1/3 of the cheese and repeat with the remaining 2 layers. Pour the milk mixture over the pasta and bake for 35-45 minutes. Let sit for 10 minutes before serving.