Bolu is a cake, usually found in snack box jakarta, made from the main ingredients: wheat flour, sugar, eggs and margarine. The history of Cake is very long and cannot be separated from the history of bread, which originated in ancient Egypt. Etymologically based on the Oxford Dictionary, the word cake (in English) comes from the word "Kaka" which comes from the ancient Norse language (namely the language used by immigrants from northern Germany) in the Scandinavian region during the Viking era in the 13th century. in those days it was very different from the cake we eat today. The shape of the cake resembles bread with a sweet taste that comes from honey.
In the early history of Bolu, sponge cake was made to commemorate religious ceremonial rituals, but along with the development of the era cake is specially served to commemorate historical days in human life such as birthdays, weddings, baptisms, holidays and even served when there is death, as a special cake in honor of loved ones.
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The development of sponge cake started to be very varied in the 19th century since the discovery of baking powder as a leavening agent so that we can get to know cake as we eat today, with the addition of icing sugar as a topping or the use of butter cream as a decoration or filling.
The term sponge which was previously known as a food that has a shape like bread with the addition of honey as a sweetener, became very diverse after the discovery of the cake developer ingredients. In various European countries the history of cake is known to be very diverse.
Judging from the use of the main ingredients, namely wheat flour, sugar, eggs, and margarine with a ratio of 1: 1: 1: 1, it is known as the Pound Cake which develops in the United Kingdom. The pound cake is usually served using a loaf pan or in the form of a "bundt" with a hole in the middle with a sprinkling of icing sugar.
Whereas in France Cake or cake is known as gateaux which is food derived from pastry dough such as: puff pastry, shortcrust pastry, sweet pastry, choux pastry (eclairs), Genoese and meringue. Gateaux is a simple round cake type with the main ingredients of flour and water with the addition of eggs, honey, butter cream and milk.