Prepare all of the ingredients. Start water boiling for pasta.
In a small sauce pan over medium heat, add butter and garlic powder. Once melted, add flour and whisk for 2 minutes. Whisk in broth and cook for 2 minutes. Whisk in heavy cream and cook for 2 minutes. Add cheese by the handful and continue whisking until sauce forms.
Add pasta to water and cook as directed on package. In last two minutes of cook time, add broccoli to boiling water. Drain in colander and rinse with cool water. Return to pot, away from heat. Pour cheese sauce over top and stir to combine.
Keyword broccoli, cheese, mac & cheese, Pasta, pasta dishes