1. Combine the sugar, flour and salt in the food processor. Add the butter and process to a coarse meal. Add the water and process into a dough. Wrap in plastic wrap and chill for 1 hour.
2. Preheat the oven to 400°F. Roll out the dough to 1/4-inch thick. Press out 5-inch circles and press them into the cups of the muffin tin. Prick the dough with the tines of a fork and bake for 15 minutes. Cool in the pan before removing.
3. Prepare the filling: Beat the Camembert with sugar and lemon zest. Spoon the mixture into the tartlets. Top with blueberries and drizzle with honey.