Method for Pad Thai Sauce
Put tamarind concentrate into a measuring cup, and add enough water to make 1/4 cup, stir, this is your tamarind juice.
In a small sauce pan, put palm sugar, fish sauce, tamarind juice, and sriracha sauce. Cook on low heat until the palm sugar dissolves, then increase heat. Let it start to boil, then quickly remove from heat, and set aside. You can make this Pad Thai sauce ahead and put in a jar in the fridge up to a week.