Black, green, oolong, and white tea come from the Camellia sinensis plant — also known as the tea plant. The leaf extract is the oil from its leaves (1). Camellia sinensis or tea leaf extract has ...
Homemade vanilla extract is a gift that keeps on giving—just ask Ina Garten, who’s been feeding her own DIY batch for an impressive 39 years. But, while it is a practical option, most professional ...