I've hosted plenty of dinner parties over the years, and even spent one summer during college running a supper club out of my parents' house. In turn, I've learned my fair share of party tricks—but my favorite one? Serving homemade ice cream for dessert. There's a certain wow factor to serving guests a frozen treat you've made yourself. But here's a secret: With an ice cream maker, you can churn out ice-cream-parlor-worthy swirls with ease. That’s because most ice cream recipes are actually really simple in terms of technique and ingredients; often, you only need some combination of milk, cream, sugar, and sometimes eggs or egg yolks. The magic happens when that base gets chilled and churned in the machine (or in some cases, frozen and spun… but more on that later).…