Wednesday, August 25, 2010

Kitchen Chemistry - Hokey Pokey

Last Friday we made Hokey Pokey with Mrs Kenny in the Home Ec room.
We began by heating the golden syrup and sugar in a pot.
The next step was to add baking soda to our syrupy mixture.
Then we had to stir it really quickly.

The mixture fluffed up to a thick golden mixture which we quickly spooned onto pre-sprayed trays. It set really quickly so we had to be fast.


It set in big dollops of rich golden toffee, and it looked and smelled delicious.

Everyone got to take part and have a taste, and it was so much fun!!!



The science behind Hokey Pokey is this:
When the golden syrup and sugar are heated it causes a reaction with the baking soda which creates carbon dioxide. The carbon dioxide is trapped in the heavier syrupy mixture which causes it to fluff up into the thick golden mixture. As it cools it sets into a firm solid.

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