Gather all required ingredients
Mix in large bowl the baking soda and cream of tartar.
Add in canola oil and vanilla extract. Mixture will become a crumbly consistency similar to a damp sand feeling.
Place desired tea in separate small bowl. Davids Tea Pure Vanilla used here. I have also used Cold 911 and Jessie's Tea both from Davids Tea in the past.
Add in the boiling water. Ensure you do not add too water as it may make bath bomb mixture fizz too early.
Mix tea into the bath bomb mixture.
Spoon mixture into desired molds. I simply used muffin tray and liners but shaped molds can also be used for fun shapes.
Firm pack mixture down into mold. Bath bombs will need at least four hours to dry out.
Once hardened remove from molds. Place in container until ready to use in the bath and enjoy!!