Modernist Cuisine is one of the biggest cookbook releases in recent memory, and the general consensus is that the acclaim is well deserved. Unfortunately for me, costing about $500, I won't be getting it anytime soon. However, one dish that caught my eye from reading some of the press is the Modernist Mac and Cheese, and I was able to find a few recipes for it online.
The idea behind this dish is using high quality cheeses, while making a perfectly smooth and creamy sauce. You essentially are making the best velveeta you've had. With a normal roux-based cheese sauce, adding too much cheese will cause the sauce to break. This recipe uses sodium citrate to stabilize the cheeses, which also allows you to use traditionally non-melting cheeses. It also uses iota carrageegan to thicken the cheese sauce. I used three different cheeses for this recipe: a pungent, mature white cheddar, a slightly softer, nutty Dutch Robusto, and an extremely nutty, hard 5-year aged Gouda.

For the liquid component of the sauce, water and wheat beer were used.

The, sodium citrate and carrageegan was added to the beer mixture, followed by the cheese. As the sauce heats through, the cheese melts completely smooth.

From there, you are supposed to freeze the cheese and grate it when you need to use it. I made it in advance, so when it was time to eat, I cooked the pasta and added the cheese sauce.

We served the pasta with a simple salad. The mac and cheese turned out to be really delicious. The cheese is very intense, much cheesier than any other mac and cheese that I've had. I think I would use a more typical, sharper cheddar next time, as all three cheese were quite nutty. Others have frozen the cheese for lengths of time without negative effects, so it can make for an incredibly easy dinner. We will definitely be making this in the future, experimenting with other cheese blends.