Preheat the oven to 425 degrees. While it heats, combine all the ingredients for the salad dressing in a mason jar and set aside.
When the beets up in a piece of tin foil, making sure they are full covered. Cook them on a baking sheet in the oven for 40 minutes. 50 minutes for large beets. They are done when you can spear them with a fork easily.
Note: If you are making the farro, soak it and make it while the beets roast.
Once the beets are done, carefully remove them from the tin foil. They will be very hot. The skin will peel away. You can peel it under a stream of cold water and this will help to cool the beats too.
Cut beets into 1-2 inch pieces.
Combined all the ingredients for the salad and then top with dressing. Try half the bottle first and then add the rest if you think it needs more.
Serve with coarse sea salt and additional fresh cracked black pepper to taste.