Onion Madeira Sauce with Pasta

In a heavy bottomed skillet, melt butter. Add brown sugar. Add onion slices and cook covered for about 5 minutes. Remove cover and cook an additional 10 minutes to caramelize the onions. Add the Madeira, cover and let simmer for 15 minutes.

Cook pasta. Drain, saving ½ cup of the pasta water. Place pasta in a bowl and toss with the oil, parsley and salt.

Remove cover form onions; increase heat to high. Add the pasta water and butter. Stir for 1 minute to heat through. Add onion sauce to pasta.

Serve at once with grated Reggiano Parmesan cheese.