A close relation to Cinnamon, Cassia has a strong, spicy aroma that can be used in small quantities to transform any essential oil blend. Cassia has been used for thousands of years for its many health benefits. It’s one of the few essential oils mentioned in the Old Testament, noted for its unmistakable fragrance and calming aromatic properties. Cassia can be used in cooking either as a replacement for cinnamon in pies and breads or by itself in a myriad of entrées and desserts.