Could it be like this recipe
https://www.allrecipes.com/recipe/19168/grandpas-peanut-butter-fudge/
This picture has the look of my dad’s fudge, with that kind of crackly top. Used real peanut butter, I don’t see the point of using chips since they aren’t quite as peanut buttery, unless they Harden better and give you that crumbly texture. Somehow he managed to do that and I even think he used marshmallow cream. But I know that’s cheating :-) but I think I remember him having some on the counter. It could have been when he was just learning though. I really should have paid attention!
I only made eggnog fudge because I can only find eggnog seasonally. And I wanted to keep some of the eggnog flavor around. I froze the fudge and I can sneak a piece every now and then throughout the year now :-) the second batch was way too creamy so I tossed it. I hate wasting those ingredients but there’s no point having empty calories that aren’t even as I want them.