Heat a cooking pan and put-in the butter. Let the butter melt.
Add-in the onions and cook until it becomes soft.
Put-in the flour and stir while cooking.
Pour-in the milk and let boil. Simmer for 2 minutes in medium heat.
Add the ground black pepper and stir.
Put-in the broccoli then cook for 3 to 5 minutes.
Add the cheese and stir until it melts.
Turn off the heat and transfer to a serving bowl.
Serve hot. Share and enjoy!