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Preparation
Step 1
Melt butter in a medium saucepan over medium heat. Mix in cream, stirring constantly. Add Parmesan cheese, Romano cheese, nutmeg, and salt; stir constantly until cheese has melted.
Step 2
Stir in egg yolk until well combined; simmer and stir over medium-low heat for 3 to 5 minutes. Garnish with additional grated Parmesan cheese, if desired.
©allrecipes
Ingredients
3 tablespoons butter
8 fluid ounces heavy whipping cream
¼ cup grated Parmesan cheese
¼ cup grated Romano cheese
1 pinch ground nutmeg
salt to taste
1 egg yolk
2 tablespoons grated Parmesan cheese (Optional)
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