Turmeric Chickpea Cakes/ Burgers

Made these tonight and were really good. Wasn’t sure what to do with the potato starch, recipe does not say but added to the chickpea mix when combining everything. 
1 small onion
2 cloves of garlic
1 can rinsed and drained chickpeas (or 1 1/2 cups pre-cooked)
small bunch of fresh parsley, roughly chopped (about 1/4 cup)
2 tablespoons potato starch
1-2 teaspoons of sea salt
freshly ground black pepper
1 teaspoon turmeric powder
1/2 – 1 teaspoon cayenne pepper (optional)
2 tablespoons chickpea flour + extra 3 tablespoons for coating
grape seed oil for cooking
Garlicky Avocado Cream to serve (recipe will be shared separately soon) (for now you can try this recipe for Avocado Lime Cream and omit the lime and add 1/2 minced garlic clove instead)

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