I've read that making tea soaps you just brew it strong and substitute the strong tea for the water amount. I did it with chamomile once but honestly couldn't tell any difference. I don't think the chamomile is fragrant enough.
Well I made it this morning The house smells amazing. I brewed some chai that I got at the Mustard Seed store. I added cinn sticks, peppercorns, cloves and chai seeds to the tea mixture. I strained it and used it as half of my liquid with goats milk as the other 1/2. At trace I added clove, nutmeg and ginger EO's as well as dry tea mix and seeds. It looks good and smells amazing. I'm happy