Unlike my previous recipe, which relied on premade ice cream and a drink mix, the scratch ingredients I used here allowed me to make small adjustments in flavor for a better match, and an ice cream maker is the perfect way to produce a thick, creamy consistency. So far, this is the best hack I've come up with to duplicate the treat that tests have shown is up to twice as thick as other famous desserts in a cup, including Dairy Queen's Blizzard and McDonald's McFlurry.