The Fanciest Easy Ham & Cheese Sandwich You Can Make (Croque Madame)

MORNAY
▪30g or 2Tbsp butter
▪10g or 1.25Tbsp ap flour
▪240g or 1c milk
▪60g ½-2/3c cave aged gruyere, shredded
▪30g or 1/3c aged parm, ground
▪5g or 1tsp salt
▪Pinch white pepper
▪1/4tsp grated nutmeg (just a few grates)

Heat small sauce pan over med. Melt butter then add flour. Stir to combine and cook for about 1min. Add milk. Bring to simmer and reduce heat to low. Add cheeses and stir to melt. Remove from heat & stir in salt, white pepper, & nutmeg.

Warm and stir over low heat to loosen before use.