Australia's largest flour mill happily hums and buzzes around-the-clock, churning out millions of kilograms of product it calls the "gem of the west".

Em Reynolds, married to one of the workers at the mill in Manildra in central western NSW, takes just a little bit of that product and turns it into another Australian gem: the honey jumble biscuit.

"Everyone loves a honey jumble, especially because you can't buy them at the supermarket anymore," Ms Reynolds tells AAP of her honey treats iced in pink and white.

Ms Reynolds' baking business, The Flour Millers Wife, is a homage to the three generations of mill workers in her husband's family and to her grandmother, who passed down her famous recipe for sprinkle yo-yo biscuits.

"She used to hold out the biscuit tin and there was 20 of us gr

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