1. Get a nice tall glass. 2. Drop one scoop of vanilla ice cream into the bottom of the glass 3. Pour Virgil’s Handcrafted Soda, or your soda of choice, over the scoop until it fills up about halfway.

Of all the things you’ve thought to mix with Pepsi — grenadine, or perhaps some rum? — milk has probably not crossed your mind. But the soda company is looking to change that this holiday season, ...