Triple Salted Caramel Cupcake

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"Weekend bake - triple salted caramel cupcake. Brown sugar cupcake base, with a browned butter caramel fleur de sel core (tell you, this is better than that BJ core), and a caramel buttercream sprinkled with smoked maldon salt. These are for my childhood girlfriend's birthday and I'm totally excited! Happy Saturday, guys!"
-- @offeastandfield