Classic Macaroni and Cheese

I made this today for the first time and it's the best mac and cheese I've ever eats.

Ingredients

2 cups milk
2 Tbsp butter
2 Tbsp all-purpose flour
1/2 tps salt
1/4 tps black pepper
1 (10 oz) block extra shart Cheddar cheese, shredded
1/2 (16 oz) package elbow macaroni

Directions

Preheat over to 400 degrees.

Cook elbow macaroni as directed on package.

Microwave milk at High for 1 1/2 minutes. Melt butter in a large skillet or pot over medium-low heat; whish in flour until smooth. Cook, whisking constantly, 1 minute.

Gradually whisk in warm milk, and cook, whisking contantly, 5 minutes or until thickened.

Whisk in salt, black pepper, 1 cup shredded cheese until smooth; stir in pasta. Spoon pasta mixture into a lightly greased 2-qt baking dish; top with remaining cheese.

Bake for 20 mintue or until golden and bubbly.

Sauce will thicken after removed from oven.