Pulse the broccoli in a food processor until finely chopped in two batches. Place in a large bowl. Add the cheese, flour, eggs, garlic, salt, pepper, and cayenne. Stir to combine.
Scoop the broccoli mixture into ½ cup portions and place on a baking sheet, patting into a 3.5 inch wide patty. (You'll have 8 total.)
Cover and chill for at least 30 minutes.
Heat the oil in a large skillet on medium high. Cook each patty (4 at a time,) until dark golden brown, about 3-4 minutes per side. Set on paper towels while cooking the rest.
Serve with sour cream and a squeeze of lemon.
Notes
Recipe from Siriously Delicious by Siri Daly
Recipe by The Baker Chick at https://www.thebakerchick.com/broccoli-cheddar-fritters/