vanilla extract over imitation for a richer, more authentic vanilla flavor, and a good quality unsweetened cocoa powder will give your swirl a deeper, more satisfying chocolate taste.
To prevent freezer burn, which can make your ice cream icy and dull its flavor, always store it in an airtight container. If your container doesn’t have a tight-fitting lid, press a layer of plastic wrap directly onto the surface of the ice cream before covering it. This acts as an extra barrier against air and moisture. For serving, don’t rush it