This is a simple yogurt cake recipe that uses only two ingredients (yogurt and marshmallows) and doesn't require gelatin or heavy cream. It's appealing because it uses the yogurt container as a mold, minimizing cleanup, and can be easily made using only a microwave and refrigerator. The fluffy, smooth texture and the perfect balance of yogurt's tanginess and marshmallow sweetness make it a perfect snack. The key is to stir thoroughly during heating to prevent the marshmallows from burning and to avoid lumps.