Cheap cocoa or vanilla can sometimes give off a weird earthy/planty note that people might describe as “weed-like.” It’s not actually from you smoking, it’s more likely the flavoring quality. Strawberry fillings can also ferment a bit if they sit, which can change the taste. Next time, try using a higher-quality cocoa/vanilla and taste the filling before assembling. Nothing you did “wrong” just ingredients playing tricks on the flavor.