Arrange broccoli in a steamer. Steam, covered, 4 minutes or until crisp-tender. Place broccoli in a large bowl.
Whisk 1/4 cup beer and flour in a bowl. Combine milk and 1/4 cup beer in a pan; bring to a simmer. Stir in flour mixture; bring to a boil. Reduce heat; simmer 2 minutes. Add cheddar, chives, lemon rind, and kosher salt. Pour over broccoli.
This recipe was not so hot. The beer was WAY overpowering. I even used fresh cheddar and shaved it myself. it was labor intensive and not worth it! We were very disappointed as cheese and broccoli is one of my husband's favorite sides- and we ended up throwing the remainder of this away!