My sister-in-law pours this 4 ingredient concoction at every backyard barbecue and it has completely replaced the dessert table.

If you like, give the drink one or two gentle stirs to slightly blend the cream without losing the marbled look. Serve immediately, while the glass is beaded with condensation and the top is still foamy and swirled.

For a lighter version, you can swap the heavy cream for half-and-half or a splash of whole milk; just know the drink will be a bit less rich and the ribbons may be thinner.