The Ice Cream Sandwich That Won’t Melt?

During the summer months, I confess that I have a weakness for ice cream, or more specifically, frozen yogurt (which sure seems like ice cream to me).  I probably have a bowl after dinner 2 or 3 times a week. And, I tend to like my frozen yogurt fairly soft, so it doesn't completely numb the inside of my mouth when I eat it. I even pop it in the microwave for 10 seconds, just to soften it up before I dish up a bowl. So, even though it's an ice cream sandwich, I'm not sure I'd want to down one of these ice cream sandwiches... that won't melt!  What?!?