Before I begin, let me say this is a project for the patient and the committed. There's no squirming out midway because you're tired or your pilates class is starting and you have to run to the gym.
But be not afraid for you shall be rewarded.
After traveling to Bologna together (the pasta heartland where pasta filled with squash is on every menu) my friend Ellen wanted to learn how to make these. So I invited her over to spend time in the kitchen rolling out pasta. It's a lot more fun and takes a lot less time with someone else helping. We didn't cook the pasta while she was at my house, since I wanted to freeze mine for later. She was planning to cook hers at home with a simple butter, sage and parmesan cheese sauce. Wonderful.
But sinfully sublime is what I would call the walnut cream sauce. The photo of the finished pasta in sauce is from a pasta party we had at our home a couple of years ago, when we gathered some relatives and friends for an evening of pasta-making and eating. The kitchen was a mess when we were finished, but we had a lot of fun and our tummies were grateful.
To make the pasta you need a pasta machine or you'll need very strong arms to roll out all the dough. This recipe for pasta and for the filling makes enough for about 110 ravioli.
3 cups flour
4 jumbo eggs
If you want to be authentic, you can make a "volcano" of the flour on a wooden board, then crack the eggs into the center and start to incorporate them into the flour until the liquid is all absorbed. Otherwise, put everything into a food processor and blend until it starts to hold together. Pull it out of the food processor and knead it on a floured board until it becomes smooth.
Let it rest under a covered bowl for at least a half hour, which will help the dough to become even more smooth and elastic and easy to work.
Flour your board or counter and cut off a quarter of the pasta. Keep the rest under the bowl. Flatten the piece with your hands, flour it a little then pass it through the thickest setting on your pasta machine. Keep changing the setting until you get to the penultimate one -- not the thinnest one. Now you should have a long strip about three to four inches wide. If it's too long and cumbersome to work with, cut it in half. Lay it on your board and place little spoonfuls of filling all across the strip, leaving a small space in between each spoonful.
Dab a little bit of water between the filling and across the top and bottom of the filling. Take one edge of the long strip of dough and carefully fold it over the filling, pressing down in between each one to take out any air bubbles. Run a decorative crimper along the edges to separate the ravioli. If you don't have a crimper, a knife will do.
Lay the ravioli on cookie sheets that have been covered with floured, linen dishtowels. Refrigerate if serving that day, or place in the freezer. After a few hours, remove from the cookie sheets and store the ravioli in plastic freezer bags.
For the filling (adapted from "The Splendid Table" by Lynne Rossetto Kasper):
I don't use the typical Halloween-style pumpkin, since it doesn't have as much flavor as squash. This recipe gives you the closest approximation to what you'll find in Italy. Some recipes call for the addition of crushed amaretti cookies, but I find that a little too sweet. The squash itself provides adequate sweetness. I also do this ahead of time and drain the cooked squash in a cheesecloth-lined sieve overnight. Otherwise, you risk having a filling that is too watery.
1 large butternut squash
1 1/2 large sweet potatoes, or two small ones
1 cup grated parmesan cheese
nutmeg, black pepper
Roast the potatoes in a 375 degree oven. Roast the squash at the same time. Cut the squash, remove seeds and place on an oil baking sheet. Roast for about an hour to an hour and a half, or until it is easily pierced with a fork. Remove the flesh from the squash and puree it in a food processor, then place in a sieve that is lined with cheesecloth or paper towels. Place a bowl under it to catch the water that is released and put the bowl in the refrigerator overnight, along with the potatoes.
The next day, remove the skin from the potatoes, puree them in a food processor, and put in a bowl. Add the pureed squash, the cheese and a grating of nutmeg and black pepper.
Make and fill the ravioli.
When you are ready to cook, bring a large pot of salted water to a rolling boil. Add the ravioli but do not let the pot to continue at a rolling boil or you may burst the ravioli. Boil for four or five minutes until cooked.
Cover with sauce and parmesan cheese.
Walnut cream sauce
(This is enough sauce for about four dozen ravioli.)
1 1/2 cup walnuts, roasted in a 350 degree oven for 15 minutes
1/4 teaspoon ground cinnamon
a few grindings of nutmeg
dash salt, freshly ground pepper
1/2 cup melted butter
1/2 cup heavy cream
1/2 cup sweet wine such as vin santo or moscato
freshly grated parmesan cheese
Roast the walnuts in the oven. If you have the patience, remove some of the outer skins of the walnuts. This is easier to do if you put them in a linen dishcloth, fold in half and rub back and forth. Grind the walnuts in a food processor until they are coarse - not fine. Melt the butter in a saucepan and add the heavy cream and wine. Cook for a few minutes on high heat until the
sauce reduces and emulsifies. Add the nuts, cinnamon, nutmeg salt, and pepper. Take off the heat and add a generous amount of parmesan - at least 1/2 cup or more. Pour over the ravioli and serve with additional parmesan.
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