I've been trying, for quite some time now, to get my mother to write down recipes for all my favorite foods, this being one of them.
But she has no recipes, everything is committed to memory (a pinch of this, a bit of that....), so I'm down to showing up early enough when we are going over to their house for dinner, watching her, and trying to write the recipe down as she cooks.
With luck, I'll have that one next time she makes it.
Luis