01 -
Combine chicken broth, half and half, bouillon cube, hot sauce, and all seasonings in a large measuring cup. Set aside.
02 -
Bring a large pot of salted water to a boil and cook pasta to al dente according to package instructions. Drain and set aside.
03 -
Melt butter in a large skillet over medium heat. Whisk in flour and cook for 1–2 minutes, stirring constantly.
04 -
Slowly add the prepared broth mixture in small splashes, whisking continuously until smooth.
05 -
Add finely chopped broccoli, bring to a gentle boil, then reduce to a simmer. Partially cover and simmer, stirring occasionally, until broccoli is tender.
06 -
Reduce heat to low and gradually stir in cheddar and Parmesan cheese until fully melted and smooth.
07 -
Add cooked pasta to the sauce and stir to combine. Let stand for a few minutes to thicken before serving.