Sous Vide Beet Soup with Caraway and Yogurt

Ingredients

• 1 tablespoon extra virgin olive oil
• 1 1/2 teaspoons caraway seeds
• 1 medium onion, diced
• 1 leek, halved and thinly sliced
• Kosher salt
• 2 pounds red beets, peeled and chopped
• 1 bay leaf
• 3 cups chicken broth, water, or a mixture of both, warmed
• 1/2 cup whole milk yogurt, plus extra for serving
• Apple cider vinegar
• Fresh dill fronds