Place the cauliflower into a food processor and pulse until small pieces of ‘rice.’
Cube chicken and brown, add onions and garlic, and saute until onion is tender. In large pan, combine chicken broth, peanut butter, and curry seasonings. When well combined, add chicken mixture to the pan. Simmer uncovered, stirring occasionally, for about 30 minutes, until chicken is cooked through and sauce has reduced slightly.
Thoroughly combine coconut milk, coconut extract and sweetener, cauliflower rice and add to the chicken mixture. Simmer, stirring, until sauce has thickened to desired consistency, 10 minutes or so. Top with grated coconut.