Ingredients:

  • 4 Tbsp Unsalted Butter (60 g)
  • 4 Tbsp All-Purpose Flour (30 g)
  • 2 cups Whole Milk (475 ml), cold or lukewarm
  • 1/2 tsp Sea Salt (3 g)
  • 1/4 tsp White Pepper (1 g)
  • Pinch of Freshly Grated Nutmeg

Instructions:

  1. Prep and Measure: Precisely measure all ingredients. Ensure the milk is either cold or lukewarm—this helps prevent lumps when it hits the hot roux.
  2. Melt the Fat: Place a heavy-bottomed saucepan over medium-low heat. Add the butter and melt completely until bubbling gently. Do not allow the butter to brown.
  3. Incorporate the Flour (The Panade): Remove the pan briefly from the heat. Whisk in the flour swiftly until fully combined with the melted butter. It should look like a thick, glossy paste—this is the raw roux.
  4. Cook the White Roux (2-3 Minutes): Return the pan to low heat. Stir constantly with a wooden spoon or spatula for 2 to 3 minutes, until the raw flour smell disappears and the mixture turns frothy and pale yellow. This White Roux stage is necessary for Béchamel.
  5. Incorporate the Milk: Remove the pan from the heat. Pour the cold milk into the hot roux gradually, adding only about 1/4 cup (60 ml) at a time.
  6. Whisk Vigorously: After each small addition of milk, immediately switch to a whisk and beat vigorously until the mixture is completely smooth and incorporated. This prevents lumps.
  7. Continue Adding: Once the initial mixture is smooth, add the remaining milk in slightly larger increments, whisking continuously until all the milk is incorporated and the sauce is thin and milky.
  8. Simmer and Thicken: Return the pan to medium heat. Bring the sauce just to a gentle simmer, whisking occasionally. The sauce will rapidly thicken as it approaches boiling point. The sauce is ready when it coats the back of a spoon (the nappe stage).
  9. Season and Finish: Remove the Béchamel from the heat. Whisk in the salt, white pepper, and nutmeg. Taste and adjust seasoning. Strain through a fine-mesh sieve if any lumps remain.