- STEP 1
Melt the butter in a pot. Blend in the flour.
- STEP 2
Add some tuna liquid and the milk. Stir until smooth, thick and boiling. If it gets too thick, add some more milk. Season with salt and pepper.
- STEP 3
Remove from the heat and beat in egg yolks. Fold in flaked tuna, breadcrumbs and stiffly beaten egg whites.
- STEP 4
Bake for 40 minutes at 160 degrees (fan).