I'm being ambitious and baking a Gruffalo cake for DC1's birthday. I've found a tutorial online and had a practice go using some regular white fondant I got from Tesco (turned out alright surprisingly!) but obviously need it to be brown. I can buy some brown fondant online but am concerned it will taste like crap. So, I've found a chocolate marshmallow fondant recipe but don't know anything about fondant at all-- will that harden well and hold the shapes or be too soft?
(in case it matters, this is the tutorial and this is the recipe)