When it’s 105 F out, turning the oven on just doesn’t sound so great but skipping dessert sounds even worse. So, a quick, cool, no-bake dessert is just the thing. I like lots of marshmallows in mine, so I put a whole package in. I also use chopped pistachios because they work well with the pistachio pudding. I go with salted pistachios because I like the little bit of salt, but unsalted pistachios would be good, too.