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1
Preheat your oven to 325 degrees.
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2
Begin by boiling 4 quarts of water and cooking the elbow pasta until al dente (8-10 minutes).
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3
While doing so, in a medium saucepan, melt the butter on medium-low heat.
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4
Once melted, whisk in the flour until combined.
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5
Next, whisk in 1 cup of milk and combine well with the four mixture.
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6
Turn up the heat to medium-high.
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7
Now whisk in 2 cups of the shredded cheddar cheese into the saucepan until well combined with the milk mixture.
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8
Keep alternating 1 cup of milk to 2 cups of shredded cheddar cheese, whisking all the while, until a sauce begins to form.
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9
Reduce the heat to low and continue to whisk until the cheese sauce thickens.
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10
Youll know when it is ready when the sauce coats a spoon and drips off only a little bit.
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11
When the cheese sauce is finished remove from the heat and set aside.
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12
After the pasta has been drained, return it to the pot and pour in the cheese sauce, dried chopped onion, parsley flakes, and 1/2 cup of the shredded parmesan.
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13
Stir, coating the pasta well; then put the mixture into a 13 x 9 baking dish.
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14
Sprinkle the top with the remaining parmesan and bake for 45 minutes to an hour.
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15
Serve with rolls or a salad.
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16
Enjoy!