The first half of the twentieth century was a golden age for the recipe booklet.
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Given that the recipes carried the brand, justified the purchase, and, if successful, encouraged repeat use of the product, great effort was made to make the best and tastiest recipes possible.
Recipe booklets, or pamphlets, most commonly were made by a food manufacturer or kitchen appliance company and were given away as a premium to help cooks learn to use that product to best advantage.
The first half of the twentieth century was a golden age for the recipe booklet