Gelatin or gelatine is a translucent, colourless, brittle (when dry), flavourless food derived from collagen obtained from various animal body parts. It is commonly used as a gelling agent in food, pharmaceutical drugs, vitamin capsules, photography, and cosmetic manufacturing. (Wikipedia). It is also widely used in the wine world as a fining agent.
However, for plant-based practitioners, they can substitute gelatine with agar agar flakes or powder. Two cups of liquid can be set using 2 tsp of agar-agar powder or flakes. Tapioaca flour / starch is also used to set fruit pies.
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“No One is Born a Great Cook, One learns by Doing.” – Julia Child