Q1: Can I make this with half-and-half or milk instead of heavy cream?
A1: Half-and-half contains roughly 10% to 18% fat, which curdles easily when combined with acidic sun-dried tomatoes. If using lighter dairy, whisk one teaspoon of cornstarch into the cold liquid before heating, or use full-fat cream cheese to stabilize the emulsion.
Q2: Why does the sauce turn gritty after adding parmesan?
A2: Grittiness stems from pre-shredded cheese coated in anti-caking agents like cellulose, or adding cheese over direct, high flame. Grate a block of Parmigiano-Reggiano yourself using a microplane, and fold it in only after pulling the skillet off the burner.
Q3: How do I store and reheat leftovers without the oil separating?
A3: Cream sauces break during high-heat microwave reheating. Store pasta in an airtight glass container for up to three days. Reheat gently in a small saucepan over low heat, splashing in one or two tablespoons of water or milk while stirring continuously to restore the emulsion.
