Ingredients:
1 cube butter
9 tbsp flour
4 c hot milk
1/2 tsp salt
1/4 tsp pepper
1/4 tsp nutmeg
1/2 c parmesan
Directions:
Melt butter and stir in flour until it bubbles. Remove from heat then quickly whisk in hot milk. Return to medium heat whisking until a low bubble. Add seasonings and cheese. Perfect sauce for lasagnas, pastas etc. Inspiration for this
here and
here.