This one is kinda cheating bc I just made a cup of their chai at home. Their chai is everything and food is incredible if you do have a chance to go in London.
For the chai, I didn’t have whole milk but I DID have heavy whipping cream so I just added some to a 2% milk. Use ~1.5 tsps (half the recommended amount) of sugar and add ~10 almond sliver size slices of peeled ginger.