Macaroni And Cheese Casserole

Let's Cook

1. Step 1.

   In a saucepan, combine 2 tablespoons flour, 1 teaspoon salt, 1/2 teaspoon dry mustard, and 1/4 teaspoon pepper. Whisk in 1 1/2 cups milk until smooth.

2. Step 2.

   Add 2 tablespoons butter to the saucepan. Cook over medium heat, stirring constantly, until the mixture comes to a boil. Let it boil for 1 minute, then remove from heat.

3. Step 3.

   Stir in 1 cup sour cream or plain yogurt until fully incorporated.

4. Step 4.

   Add 2 cups shredded cheddar cheese and 8 ounces elbow macaroni (cooked for 7 minutes and drained). Stir until the cheese is melted and the macaroni is evenly coated.

5. Step 5.

   Pour the mixture into a greased casserole dish. If using, sprinkle 1/2 cup breadcrumbs evenly over the top.

6. Step 6.

   Bake at 375°F for 25 minutes, or until the top is crunchy and golden brown. Let it rest for a few minutes before serving.