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1
Preheat the oven to 350 F. Butter or oil an 8-inch baking dish.
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2
Cook the penne 2 minutes less than package directions.
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3
(It will finish cooking in the oven.)
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4
Rinse the pasta in cold water and set aside.
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5
Combine the cooked pasta and the sauce in a medium bowl and mix carefully but thoroughly.
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6
Scrape the pasta into the prepared baking dish.
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7
Sprinkle the top with the cheeses and then the chili powder.
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8
Bake, uncovered, for 20 minutes.
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9
Let the mac and cheese sit for 5 minutes before serving.
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10
Melt the butter in a heavy-bottomed saucepan over medium heat and whisk in the flour.
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11
Continue whisking and cooking for 2 minutes.
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12
Slowly add the milk, whisking constantly.
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13
Cook until the sauce thickens, about 10 minutes, stirring frequently.
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14
Remove from the heat.
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15
Add the cheeses, salt, chili powder, and garlic powder.
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16
Stir until the cheese is melted and all ingredients are incorporated, about 3 minutes.
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17
Use immediately, or refrigerate for up to 3 days.
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18
This sauce reheats nicely on the stove in a saucepan over low heat.
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19
Stir frequently so the sauce doesnt scorch.
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20
This recipe can be assembled before baking and frozen for up to 3 monthsjust be sure to use a freezer-to-oven pan and increase the baking time to 50 minutes.
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21
One-half teaspoon of chipotle chili powder makes a spicy mac, so make sure your family and friends can handle it!
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22
The proportion of pasta to cheese sauce is crucial to the success of the dish.
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23
It will look like a lot of sauce for the pasta, but some of the liquid will be absorbed.