Preheat oven to 180ºC and butter 6 individual tart tins.
Place sugar and zest into Thermo bowl and mill 10 sec/speed 10.
Add almonds and vanilla and mill 20 sec/speed 10.
Add remaining ingredients except blueberries and icing sugar and blend 30 sec/speed 7.
Divide mixture between tart tins and top with blueberries to taste. Bake 20 minutes until golden and fragrant.
Dust with icing sugar when ready to serve.