Simpleton Mac n Cheese

Only one thing gets this simpleton mac n cheese ball rolling! A good bechamel sauce (white sauce). I am going to keep this simple. 2 cups macaroni was pre-boiled with a few drops of oil, strained and kept aside according to instructions on the package.
For the bechamel, I took equal parts butter and all purpose flour (8 tablespoons each).
First, in a saucepan, add a tablespoon of canola oil, and bring to medium heat.
Add the chopped butter stick (8 tbsp) and allow it to melt.
Add 1 tbsp garlic powder and 1 tsp salt and whisk.
Gradually add all purpose flour, while whisking.
Cook for about half a minute.
Gradually add a cup of milk, while whisking.
Cook until the sauce thickens.
Check for salt, adjust accordingly.
Add the macaroni to the sauce and continue stirring on low heat.
Add generous amounts of shredded cheeses (cheddar and mozzarella) as cheesy as you want it to be.
Garnish with dried parsley leaves.