Preheat oven to 200°C (180°C fan-forced). Lightly grease the ‘back’ of a 6-hole texas muffin pan.
Cut out 6 x 14cm rounds of pastry and carefully place 3 at a time over the back of the prepared texas muffin pan, to allow the pastry room to cook evenly. Chill in refrigerator for 15 minutes before placing in preheated oven for 15 minutes. Remove from oven and place tart shells on a wire rack to cool.
Repeat the process with the remaining pastry rounds, allow 10min for tray to cool before topping with remaining rounds.
Meanwhile, in a small mixing bowl combine the crème fraiche, horseradish, dill and season with salt and pepper, before mixing until well combined. Set aside until required.
To serve, evenly divide the crème fraiche mixture between the tart shells, followed by the beetroot and salmon. Top each tart with a teaspoon of salmon caviar and finish with a few sprigs of dill.
Note: When blind baking these tarts we use a handy little trick of baking the tarts upside down! This means there is no need for baking weights.