I do mine like Pumba does hers. One of the big differences, though, is that although I
LOVE it with extra sharp cheddar, I found that it was a lot cheaper to use the cheese ends from our grocer's deli. They package all the ends that are too small to go through the slicer. They also add slices that were left-over. If you watch for them every week & freeze until you have enough, you can get some
really tasty, creamy mac & cheese out of them. Sometimes we've found packages with a bit of Pepper Jack, Muenster, Swiss, Provolone, etc. in addition to the standard American. The variation in taste is really interesting - we especially enjoy it with the Swiss because it gets stringy. We also get ends of cooked ham and put that in.
I make a roux:
Melt 2 - 4 Tbl butter/margarine, then stir in 2 - 4 Tbl flour. (I use regular unbleached, but if you use Wondra, you're less likely to get lumps.) Stir it into a paste & then add milk. Sorry - I just pour it in until it looks right! I'd guess it's about 2 cups. I don't bother to warm it first. I use a whisk to fully blend the butter/flour into the milk.
Once it's warm (steamy, not boiling) I add chunks/slices of the cheese (the more the better, but at least 12 ounces.) If you cook it on medium, you don't really need to stir constantly.
However, don't walk away from it, as you'll still need to stir a bit. Heat only until the cheese is melted.
I use a pound of whatever pasta I have available - shells, elbows, rotini. I also only cook it as long as the package says for al dente, as it will cook further in the oven. I don't rinse the pasta uless it gets done too long before the cheese sauce & becomes a big lump.
Dump the pasta in a large casserole & pour the cheese sauce over it. Stir until mixed well & bake for 20 - 30 minutes at 350.
I've never done it the was MerryPoppins does, but it sounds good - AND easy!
