1) Preheat a griddle to medium-high.
2) Skewer figs, leaving enough room in between, and brush lightly with canola oil. Place figs, cut side down, on grill and cook until brown, about 2 mins. Remove from heat and arrange on a serving platter. Drizzle half the figs with the ricotta and treacle and half with the melted chocolate. Garnish with mint.