Spaghetti Carbonara
["1 lb. fresh pasta or 12 oz. dried pasta", "1/2 lb. bacon", "1 large onion, chopped", "1/2 c. chopped parsley", "2 eggs (room temperature)", "3/4 c. grated Parmesan cheese", "1/4 tsp. hot pepper flakes", "1/2 c. heavy cream", "2 Tbsp. soft butter (for pasta)"]
["Cut bacon into 1/2-inch pieces.", "Saute in skillet until crisp. Remove bacon and pour out all but 2 tablespoons of bacon fat. Saute onion in bacon fat for 3 to 4 minutes until soft."]
["fresh pasta", "bacon", "onion", "parsley", "eggs", "Parmesan cheese", "hot pepper", "heavy cream", "butter"]