Marinate chicken with all the other ingredients except curry leaves and butter for 4 hours or overnight.

Now in a kadai. Melt some butter.

When the butter is melted add in chicken and toss well with the butter.

Cover the kadai with a lid and let it cook on medium flame for 20 mins till the chicken is cooked.

Now remove the lid, increase the heat to a high and brown the chicken till it is roasted and caramalized. It will take around 10 mins.

Now throw in a handful of  curry leaves and mix well with the chicken.

Serve this with rice or roti.