Add about 4 inches of water to a large pot and bring to a boil over high heat.
Cook pasta according to the manufacturer's instructions. This typically entails boiling for about 8-12 minutes, or until barely al dente.
Remove the pasta from the water and set aside.You may want to stir it occasionally to keep the noodles from sticking together.
Alfredo Sauce
Bring butter and heavy whipping cream to a saucepan and bring to a simmer over medium-high heat.
Mix in dry white wine, garlic, and shallots. Simmer, stirring constantly, for 3-5 minutes, or until the garlic and shallots become fragrant.
Slowly stir in the blue cheese and parmesan about 1/4 cup at a time. Make sure to stir constantly until fully incorporated.The key to a creamy sauce is adding in the cheese gradually. If it’s added too quickly, the mixture will separate!
Once all of the cheese is incorporated and the mixture is smooth, stir in the broccoli.
Simmer the alfredo sauce for 15 minutes, or until the sauce reaches the desired consistency. Make sure to stir occasionally.I like a slightly thicker sauce. This will take longer to cook down. Although this is all a matter of personal preference! Cook to your personal taste.
Serve
Add rigatoni to the sauce and stir until combined.
Top with a dash of salt and pepper to taste.
Tips, Tricks, & Notes
Some alfredo sauce recipes will tell you to add cornstarch to thicken. This is a trick for making fondue and also helps keep the sauce from breaking. I prefer not to add cornstarch if I can help it and find that cooking down the alfredo sauce warrants a similar result without it being necessary. However, this is a good trick if you have trouble with the sauce breaking or want to speed up the process.
This is a great recipe to turn into a macaroni and cheese. I didn't want to wait that long today! So, I didn't bother. But you could easily lightly oil a large baking dish, pour the mixture inside, grate a little bit of extra cheese on top, and then cook at 350 degrees Fahrenheit for 30-40 minutes, or until the top begins to brown. And voila! A little bit more time and you have fondue macaroni and cheese.