Im a big fan of the tawa method too. It should be an essential purchase for any naan cook without a tandoor. I spent a long time trialling pizza stone methods but they usually ended up tasting like pizza bases. I make them quite thin and they cook in about a minute. I still really struggle getting them garlicky enough. I think each one will need about 4 - 5 cloves to achieve the result. Unfortunately as they only get about 30 seconds under the hot grill the garlic is usually a bit raw. I might try the pre fry in ghee method.