This Teeccino Dark Chocolate Herbal Tea ($8) reminds me so much of hot chocolate, but it's sugar-free and vegan. It has a richer and deeper chocolatey flavour, and is not as sweet, which I like. It tastes perfect as is, without any plant-based milk added, and I love that it's caffeine-free so I can sip on it at any time of the day.
I like to make a cup after lunch, and then after dinner, I'll add water to the same mug with the used tea bag to make another cup. It still tastes delicious!