Ingredients
1cupwalnuts
1cupflat leaf parsley,thick stems removed, lightly packed
2clovegarlic
3tbspparmesan cheese,grated
½cupolive oil
½tspsalt
¼tspfresh ground black pepper
1lbcheese tortellini,fresh or frozen
1tbspbutter
Preparation
In a food processor or blender, pulse the walnuts, parsley, garlic, Parmesan, oil, salt, and pepper to a coarse puree.
In a large pot of boiling, salted water, cook the tortellini until just done. This will take about 4 minutes for fresh and 12 minutes for frozen.
Reserve half a cup of the pasta water.
Drain the tortellini.
Toss with ¼ cup of the reserved pasta water, the walnut pesto, and the butter.
If the pasta seems dry, add more of the reserved pasta water.
Sprinkle with additional Parmesan and pass more at the table.
