Golden syrup is a pale treacle

Treacle

Treacle is any syrup made during the refining of sugar and is defined as "uncrystallized syrup produced in refining sugar". Treacle is used chiefly in cooking as a form of sweetener or condiment....

. It is a thick, amber-colored form of inverted sugar syrup

Inverted sugar syrup

Inverted or invert sugar syrup is a mixture of glucose and fructose; it is obtained by splitting sucrose into these two components. Compared with its precursor, sucrose, inverted sugar is sweeter and its products tend to remain more moist and are less prone to crystallisation...

, made in the process of refining sugar cane juice into sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, or by treatment of a sugar solution with acid. It is used in a variety of baking recipes and desserts. It has an appearance similar to honey

Honey

Honey is a sweet food made by bees using nectar from flowers. The variety produced by honey bees is the one most commonly referred to and is the type of honey collected by beekeepers and consumed by humans...

, and is often used as a substitute for people who do not eat honey. It can also be used as a substitute for corn syrup

Corn syrup

Corn syrup is a food syrup, which is made from the starch of maize and contains varying amounts of maltose and higher oligosaccharides, depending on the grade. Corn syrup is used in foods to soften texture, add volume, prevent crystallization of sugar, and enhance flavor...

.

Molasses

Molasses

Molasses is a viscous by-product of the processing of sugar cane, grapes or sugar beets into sugar. The word molasses comes from the Portuguese word melaço, which ultimately comes from mel, the Latin word for "honey". The quality of molasses depends on the maturity of the sugar cane or sugar beet,...

 or dark treacle

Treacle

Treacle is any syrup made during the refining of sugar and is defined as "uncrystallized syrup produced in refining sugar". Treacle is used chiefly in cooking as a form of sweetener or condiment....

 has a richer colour than golden syrup, and a stronger, slightly bitter flavour.
Golden syrup was invented in 1883 by Scottish businessman Abram Lyle

Abram Lyle

Abram Lyle is noted for founding the sugar refiners Abram Lyle & Sons which merged with a rival to become Tate & Lyle in 1921....

, when he discovered that a byproduct of the sugar cane

Sugarcane

Sugarcane refers to any of six to 37 species of tall perennial grasses of the genus Saccharum . Native to the warm temperate to tropical regions of South Asia, they have stout, jointed, fibrous stalks that are rich in sugar, and measure two to six metres tall...

 aka Golden Tree refined at his factory in Plaistow

Plaistow, Newham

Plaistow is a place in the London Borough of Newham in east London. It formed part of the County Borough of West Ham in Essex until 1965.Plaistow is a mainly residential area, including several council estates; the main road is the A112 - Plaistow Road, High Street, Broadway, Greengate Street and...

, east London, could be made into a delicious spread and sweetener for cooking.