I'm looking for a recommendation for a waffle iron with interchangeable plates for butter galettes.  I have one but it's over 30 years old, falling apart and runs off 220V to boot. Are there any replacements? I cannot find any, anywhere. 
Alcohol Sugar Fat. Your recipe needs to be more of those and less of water; just like an ice cream.  I had luck with agave syrup as a base (maple or cornsyrup?) that I tested by freezing; when I was satisfied by my choice, I melted in chocolate and additional fat (good coconut oil I think).  Certainly won't be fudgy outside of freezer so finding a recipe is tricky...  Have a look also at that ice cream topping chocolate hard-shell. It has a super low melting point with its high fat content. Wouldn't take much more sugar in the form of a syrup to make it fudgy. 