peeling boiled potatoes

Peruvian Chicken Dish?

I went to a few Peruvian "fund raisers" while stationed in Italy. The plate contained a chicken quarter, whole, peeled boiled potatoes, all of which was covered in a yellow or yellowish-green sauce, the BEST! All I could understand was powdered mustard and crackers? Please give me the recipe!
I don't think that's it, thanks anyway.

I am from Tx but I will try to find it.
Here it is:
Ingredients

chicken 1
aji panca paste 1 1/2 tsps
huacatay paste 1/2 tsp
white distilled vinegar 2 Tbsps
beer - dark 1/4 cup
soy sauce 1 Tbsp
garlic clove 4 minced
ginger 1 tsp peeled and grated
rosemary 1 1/2 tsps minced
cumin 1/2 tsp
salt 1 Tbsp
black pepper 1/2 tsp

Dawn Wells Potato Peeling Video

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