While this recipe serves 6, the prepared ingredients can be kept for 3-4 days with a smaller number of servings assembled at a given time.)
When the gelatin mixture has cooled, add to the yogurt mixture and divide this "panna cotta" among 6 (1/2-cup) ramekins. Cover and chill for at least 24 hours.
PREPARE THE BEETS
Wash and peel (gloves recommended unless you like the red hand look):
2 pounds beets (about 6 medium sized beets)
Using a zester cut ~2 T of thin strips off the beets and reserve. If medium beets are used, cut beets in half; if small beets are used, leave them whole. Place in a oven-safe baking dish.
In a small dish combine:
1/3 c orange juice
2 T olive oil
1/2 t pepper
Pour over the beets. Cover (I forgot once and all the liquid boiled away) the dish with a cover or aluminum foil and bake for 50 or 60 minutes until the beets are tender. Remove the beets from the pan, reserving the liquid in a small dish, and cool until the beets can be easily handled to cut, then cut into small wedges.
MAKE THE VINAIGRETTE
To the dish containing the reserved beet liquid add:
2 T vinegar (I use my homemade tarragon, wine or raspberry would work too)½ t pepper
Pour the vinaigrette over the beets and refrigerate at least until the beets are cold.
Preheat oven to 350° F
Place on a jelly-roll sheet or other shallow pan with sides:
3/4 c hazel nuts (or since oven is on anyway, roast more and save for other uses - awesome on hazelnut gelato!)
Place in preheated oven and roast for 5 to 10 minutes, or until the skins are blistered. Remove the pan from the oven, place a spoonful of nuts at a time in a dish towel and rub the nuts with the towel to remove loose skins (don't worry about skins that don't come off) and cool completely. Slice the nuts in half (optional).
5 oz arugula
Remove the panna cotta from the ramekins: Place each ramekin in turn, briefly (~15 - 20 seconds) in a pan of hot water. Remove and run a knife around the inside the ramekin. Dry the outside of ramekin and immediately invert on the center of the salad plate on top of arugula. Carefully lift off the ramekin, gently shaking to release the panna cotta. If the panna cotta does not slide out easily, using the same knife, try lifting a bottom edge to break the suction. Repeat until panna cotta has been placed on all 6 plates. Surround each panna cotta with 1/6th of the beets, sprinkle a few hazelnuts on the beets and top the panna cotta with 1/6th of the beet zest. Serve immediately.