Treacle is a type of sweet SYRUP made from sugar cane or sugar beet juice. It is a thick, dark liquid that is used in baking and cooking. Theriac, also known as theriaca, is an ancient medicinal mixture made from many ingredients, including honey, wine, and various herbs. SYRUP is a thick, sweet liquid made by boiling down sugar or other sweeteners. MOLASSES is a thick, dark SYRUP made from sugar cane or sugar beet juice during the refining process. All three of these terms are related to treacle, which is a combination of all three.