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.…