siggi's Icelandic-style yogurt: skyr - Blended Beet Soup

Ingredients

• 3 medium beets, cleaned and trimmed
• 3 Tbs olive oil
• 1 medium onion, chopped
• 6 cloves garlic, minced
• 3 cups chicken stock (can also use vegetable stock)
• 1 cup siggi’s plain yogurt + more for serving
• salt and pepper to taste