dunno what to say so lets have some american macarony and cheese recipe

INGREDIENTS
1
cup macaroni
1
tablespoon butter
1⁄4
cup onion, chopped fine
1
garlic clove, minced
1
tablespoon flour
1 1⁄2
cups milk
1⁄4
teaspoon black pepper, freshly ground
1⁄2
cup extra-sharp cheddar cheese, shredded (I use Cabot's Seriously Sharp)
1⁄2
cup sharp cheddar cheese, shredded (I use Cabot's Vermont Cheddar)
1⁄2
cup mild cheddar cheese, shredded

DIRECTIONS
Preheat oven to 350°F.
While making cheese mixture, cook macaroni per package instructions. Drain and set aside.
In a medium saucepan over medium heat, melt butter.
Cook onion and garlic in butter until translucent.
Add flour to saucepan and stir to combine, leaving no dry flour bits.
Add milk all at once to saucepan along with black pepper. Stir to combine. Stir constantly until mixture begins to thicken.
Stir in cheeses one at a time until melted, and mixture is smooth.
Place cooked macaroni in a 1-quart casserole dish. Stir in cheese mixture until combined.
Bake for 30 minutes or until top is lightly browned.
Cool for 10 minutes and serve.