Hmm any advice for making a garlic and chilli sauce?

Well I am completely obsessed with this recipe they have at Harvester called Kickin’ Garlic Chicken. Basically it is half a chicken with the best sauce i’ve ever tasted smothered over it. I want to replicate it myself, but I have no experience at making sauces at all.

I have only a limited idea of the ingredients in it which includes chilli flakes, garlic, and butter/oil. Can anyone suggest a recipe that’ll produce something similar.

I was just going to go try something myself involving frying blitzed garlic/chopped chillis/onions and then melt some butter and combine together. Do you think this’ll work? Also what herbs do you think’ll go well with it.

Any additional info can be provided, providing you have the questions :).