A sauce should coat the back of a spoon if you wish to achieve the desired consistency! 30 November, 20175 February, 2018 You should be able to draw a line through the sauce/custard with your finger. Nadine Facebook Comments Please follow and like: Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)Like this:Like Loading...