Chicken Sausage without meatloaf onion

1 1/2 pound/675 grams chicken thigh meat, diced and thoroughly chilled 225 grams schmaltz, frozen (or a scant cup if you don't have a scale, but shame on you)[...]

add to shopping list 1 small onion, chopped fine 2 tablespoons unsalted butter 1/2 teaspoon turmeric 1/4 teaspoon dried hot red pepper flakes 2 teaspoons[...]