Does anyone know how to warm up marshmallows so they get sticky and fun to be covered in without them being too hot? I usually end up waiting for them to cool off first, but then they lose their stickiness. Please help.

Just start with marshmallow fluff... smooth, creamy and sticky from the beginning. No heat required. Of course a topping of chocolate sauce or caramel makes for a nice contrast and adds just a bit of slipperiness.