Sauce for Au Gratin Potatoes

📜 Collection: UK3 | ✍️ Attribution: Unknown | 📂 Category: Sauces A rich and creamy homemade cheese sauce perfect for topping au gratin potatoes or roasted vegetables. This versatile recipe uses a classic roux base for a smooth, velvety consistency.


Prep TimeCook TimeInactive / Chill TimeYield / Servings
10 mins15 minsNone4–6 Servings

🔪 Key Equipment

  • saucepan
  • wire whisk

Ingredients

MeasurementsIngredientsPrep / Notes
1/2 StickButterunsalted
2 TablespoonsFlourall-purpose
2 CupsMilkwhole
1 CupCarnation Milkevaporated
1 CupWaterroom temperature
A Good SizeChunky Cheeseshredded or cubed
To TasteGarlic Saltnone

Instructions

Step 1: Prepare the Roux

  1. In a saucepan, melt 1/2 stick butter over medium heat.
  2. Add 2 tablespoons flour to the melted butter and stir constantly for 1-2 minutes until a smooth, golden paste forms and the raw flour smell dissipates.

Step 2: Create the Sauce

  1. Slowly whisk in 2 cups milk, 1 cup Carnation milk, and 1 cup water, whisking continuously to prevent lumps.
  2. Season with garlic salt to taste.
  3. Add the chunky cheese and stir until completely melted and the sauce is smooth.
  4. Bring to a gentle simmer and cook, stirring occasionally, until the sauce thickens to a velvety consistency that coats the back of a spoon.

💡 Make-Ahead & Storage: Leftover sauce can be stored in an airtight container in the refrigerator for up to 4 days; reheat gently on the stovetop.


Original Recipe Scan

Original Handwritten Card