This salad is gorgeous and perfect for Rosh Hashanah, beets and sweet tangerine juice.

For the salad:
3 medium yellow beets (about 1 pound), stems trimmed off
3 medium red beets (about 1 pound), stems trimmed off
2 tablespoons extra-virgin olive oil
Salt and freshly ground black pepper
4 cups baby leaf spinach
Toasted almonds

For the dressing:
3 cups tangerine juice or orange juice
1 tablespoon lemon juice
Pinch salt and pepper
3/4 cup extra-virgin olive oil
While the beets are roasting, make the dressing.

Preheat oven to 350 degrees F.

Place the beets in a baking pan, drizzle with the oil, and season with salt. Cover with foil. Bake for about 1 hour, or until tender when pierced with a knife.
In a 1-quart non-reactive saucepan, over medium-high heat, reduce the tangerine juice to about 3/4 cup. Add the lemon juice. Remove from the heat and strain with a fine sieve.
Return to the saucepan; add lemon juice, salt and pepper. Over medium heat, reduce until the mixture bubbles and has a syrup-like consistency. You should have about 1/4 cup. Remove from the heat and strain again. Let cool to room temperature. Add the olive oil. Set aside. (Can be stored in refrigerator for up to 1 1/2 weeks.)

When cool enough to handle, peel the beets, and thinly slice them into rounds. Arrange on a serving platter and drizzle with the dressing. In a large bowl, toss the spinach with the remaining dressing and place spinach on top of beets in the center of the platter.
Garnish with toasted almonds.