Borsht - How to Make Borsht

Ingredients

• 1 tbsp. butter
• 1 tbsp. extra virgin olive oil
• 1 medium yellow onion, chopped
• 2 medium carrots, peeled and diced
• 2 celery stalks, diced
• 2 garlic cloves, minced
• 1/2 tsp. paprika
• 1/2 tsp. caraway seeds
• 1 lb. beets (about 6 medium beets), peeled and chopped into 1" pieces
• 1 large (or 2 small) Russet potato,  peeled and chopped into 1" pieces
• 2 bay leaves
• 1/2 medium green cabbage, sliced
• kosher salt
• freshly ground black pepper
• 1/4 c. freshly chopped dill, plus more for serving 
• Juice of 1/2 lemon
• Sour cream, for serving