I want to make a CP soap inspired by the Arabic sweet Layali Lubnan which is flavoured with rosewater and topped with pistachios. Can I use rosewater for my lye solution, and would you recommend just a small amount with regular water or could I use pure rosewater for the lye? Or a rosewater and milk combination? Also for the pistachio, I don't really want to use ground pistachios for exfoliation, I prefer a smooth bar, but is there such a thing as pistachio essential oil? Or is there a way to infuse the oil and still get the scent coming through? Sorry for so many questions but I am a newbie and don't want to ruin loads of batches if I can help it!