What is the pudding in bubble tea?

What is the pudding in bubble tea?

Pudding at boba shops are custard-like in flavor—made from egg yolks, cream, and sugar—but firmer due to the addition of gelatin. The closest thing I could compare it to is a very soft flan. They have the slightest chew and pair really nicely with creamier, more indulgent milk teas. May 7, 2021

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