This year, Halloween will coincide with a lunar event known as a blue moon (a second full moon in the same month).
On Oct. 31, Denny’s will serve a special blue-hued version of its popular Moons Over My Hammy sandwich, which will be made with blue sourdough bread sandwiching more recognizable ingredients?
Blue bread for a Blue Moon.
But don't expect to stroll into just any Denny's and order a Blue Moons Over My Hammy.
“Only in 2020 would a Blue Moon coincide with Halloween — so what better way to celebrate than by giving one of our most legendary breakfasts, the Moons Over My Hammy, a little makeover?” said John Dillon, chief brand officer for Denny's!
Blue moons also typically only occur once every two or three years, hence the term “once in a blue moon.” That said, one can only assume that blue bread, too, is something that happens only “once in a blue moon.”.
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