Hibiscus Shortbread Cookies with Glaze

"There is nothing easier than a slice & bake shortbread cookie recipe. They mix up in minutes & that simple, buttery cookie base is as comforting as they come. I’m rolling out a newbie recipe soon & it honest to goodness immediately became my favorite shortbread cookie recipe of all time, OF ALL TIME!!! And I really love shortbread cookies, so that’s saying something. ⠀⠀⠀⠀⠀⠀⠀⠀⠀ In the meantime, can anyone guess what those vibrant little bits are in the dough?! I’ll give you a hint, these aren’t your Grandmother's shortbread cookies."