• 12 Ingredients
  • 10 Tbsp unsalted butter, divided
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  • 2 onions, thinly sliced
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  • 1 Tbsp brown sugar
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  • 1 lb penne
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  • ½ cup all-purpose flour
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  • Show all (12)
  • Nutrition 100% match
  • Calories per gram: 2.2
  • Total fat: High
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  • 16 Ingredients
  • 4 oz. grated Gruyère (1-1/2 cups)
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  • Freshly ground black pepper
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  • 2 oz. finely grated Parmigiano-R...
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  • 3-1/2 cups whole milk
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  • 2 Tbs. extra-virgin olive oil
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  • Show all (16)
  • Nutrition 100% match
  • Calories per gram: 2.7
  • Total fat: High
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