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Export 8 ingredients for grocery delivery
Step 1
Bring 3 quarts of water to boil in covered pot for pasta.
Step 2
Mix cornstarch with a tablespoon of buttermilk to make smooth paste. In heavy-bottomed saucepan, combine buttermilk-cornstarch mixture, remaining buttermilk, Gorgonzola and nutmeg.
Step 3
Cook over medium heat, stirring almost constantly, to melt cheese and thicken mixture.
Step 4
When water boils, stir in pasta and cook according to package directions, about 45 seconds; drain.
Step 5
Just as buttermilk mixture begins to thicken, stir in peas and cook just long enough to heat through.
Step 6
Stir in walnuts and serve over pasta with Parmesan cheese on the side.