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Ingredients
1/2cupbutter
1/4cupdiced yellow onion
1clovegarlic(minced)
2teaspoonscornstarch
2cupsheavy cream
1cupgrated Romano cheese
1 1/2cupsshredded Parmesan cheese
1/2teaspoonpepper
Instructions
Melt butter over medium heat. Add onions and cook until onions soften. Add garlic and cook briefly. Stir in cornstarch.
Add cream and bring to a gentle boil, stirring constantly. Simmer and stir for one minute.
Add cheeses and pepper. Cook and stir until cheese melts.
Notes
It takes a little patience to stir the cream into the mixture and keep stirring until it comes to a boil. You can shorten the process by allowing the cream to come to room temperature before making the sauce.This sauce can be made with non-dairy butter, cream and cheese alternatives. If using non-dairy creamer, check to see that it is unsweetened and unflavored.If you use Pecorino Romano, the stronger flavor might overpower the Parmesan. If you are using Pecorino Romano, start out using one-half cup of Pecorino Romano, and taste the sauce before adding more.