Ingredients:

  • 4 tablespoons (57g) unsalted butter
  • 1/4 cup (30g) all-purpose flour
  • 3 cups (720ml) whole milk
  • 1/4 teaspoon ground nutmeg
  • Salt and freshly ground black pepper to taste
  • Optional: 1/2 cup (50g) grated Parmesan cheese for added flavor

Instructions:

  1. In a medium saucepan over medium heat, melt the butter until bubbly.
  2. Whisk in the flour and cook for 1-2 minutes until it forms a smooth paste, stirring continuously to avoid browning.
  3. Gradually whisk in the milk, a little at a time, ensuring there are no lumps.
  4. Continue cooking, whisking constantly, until the sauce thickens and coats the back of a spoon (about 8-10 minutes).
  5. Stir in nutmeg, salt, and pepper. If desired, add grated Parmesan for extra flavor.
  6. Strain the sauce through a fine-mesh sieve to ensure a silky texture, if desired.
  7. Incorporate into your lasagna layers or use as directed in the full recipe.