Preheat the oven to 180°C. Line 4 large baking trays with non-stick baking paper (or line two at a time)
Combine all the ingredients expect the dark chocolate in a large bowl.
Place tablespoonfuls onto the baking trays, leaving plenty of room for spreading. . Bake for 10 minutes, or until golden. Remove from the oven and allow to cool for 5 minutes before transferring to a wire rack to cool completely.
Melt the chocolate by placing in a heatproof bowl over simmering water or microwaving for short, 20 second bursts, stirring each time, until melted.
Allow chocolate to cool a little to thicken, then dip the bottoms of the Florentines into the chocolate to cover. You can use a fork to make a wiggly pattern on the chocolate if you like. Turn upside down onto a wire rack until chocolate sets.
Store in an airtight container, or in the fridge if you live in a warm climate.
