Rajas Con Crema Macaroni and Cheese

• 2 tablespoons unsalted butter
• 1/2 white onion, chopped
• 2 tablespoons all-purpose flour
• 1 cup cream or half-and-half
• 8 ounces Monterey Jack cheese, grated
• Salt
• freshly ground black pepper
• 8 ounces small pasta shells or mini farfalle
• Two 4-ounce cans roasted green chiles

1. In a medium saucepan over moderate heat, combine the butter and onion and cook, stirring occasionally, until softened, 6 to 8 minutes.
2. Stir in the flour and cook, stirring constantly, for 1 minute.
3. Add the cream and cook, stirring, until slightly thickened, about 5 minutes.
4. Add the cheese, and stir until incorporated.
5. Season the sauce with salt and pepper, and keep it warm over very low heat.
6. Meanwhile, in a medium pot of boiling well-salted water, cook the pasta until al dente.
7. Drain well and stir into the sauce, along with the green chiles.
8. Serve immediately.

unsalted butter, white onion, flour, cream, cheese, salt, freshly ground black pepper, pasta shells, green chiles

Taken from www.foodandwine.com/recipes/rajas-con-crema-macaroni-and-cheese (may not work)