This chilled dessert offers all the flavors of a s'more, but you don't need a campfire. It also features a protein boost from the Greek yogurt.
Preheat broiler to high with oven rack 5 inches from heat. Line a rimmed baking sheet with parchment paper, and generously coat with cooking spray. Place marshmallows in an even layer on prepared baking sheet, and broil until golden brown, about 45 seconds. Remove from oven, and let cool to room temperature, about 10 minutes.
Place toasted marshmallows, yogurt, cream, vanilla, and salt in a large bowl. Beat with an electric mixer on medium speed until mostly smooth (with some small marshmallow chunks), about 3 minutes. Chill until cold, about 30 minutes. Divide mixture among 4 bowls, and top with crushed crackers and chocolate syrup.
Prep tip: Instead of using a food processor to crush the graham crackers, place them in a zip-top plastic bag, seal, and crush with a rolling pin.