Half a croissant, on a plate, with a sign in front of it saying '50c'
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Wildfire inspired incendiary cake decoration

 Flammable topping which reveals message upon burning
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The cake is sprinkled with a flammable but edible crumbs. There are also identically colored crumbs which are not flammable. Upon ignition, the flammable toppings burn away, revealing the message or picture spelled by the non-flammable toppings.

Ideally these crumbs would be made from something very thin, about a millimeter square in size so that they would catch fire quickly from neighboring crumbs and leave very little material behind.

Inspired from a very half-baked dream where’s the cake had multiple layers of these that could be burned away and revealed in succession. I’m not sure how to achieve more than one layer, though.

—cowtamer, Feb 27 2023

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       This is brilliant. Fire on a cake is already a standard thing with candles. This takes it to the next level. [+]
—doctorremulac3, Feb 27 2023
   

       I approve of all process based work that results in the production of legible text as an outcome. (have posted several myself but not using fire yet)
—xenzag, Feb 27 2023
   

       The multiple layers thing could be done if you could find suitable materials with staggered flashpoints and combustion temperatures. You would also need temperature-specific matches to light them with though. (a bit like different grades of solder and an adjustable iron)
—pocmloc, Feb 27 2023
   

       Excellent!
—calum, Feb 27 2023
   

       This will result in more idiots being hospitalized than gender reveals. I heartily approve!
—21 Quest, Feb 27 2023
   

       Ooh, can one layer be a contract with the devil?   

       To layer this, you would need to have edible varieties of foods that combust at different temps, or the inside is sufficiently insulated for a bit before bursting into flame.
—RayfordSteele, Feb 28 2023
   


 

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