Potato Celery Root Soup - Full Belly Farm

Ingredients

• 3 tablespoons olive oil
• 1 fresh onion, chopped
• 2-3 cloves garlic, minced
• 5 potatoes, cut into 1 inch cubes
• 1 celery root, peeled and cut into 1 inch cubes
• 6 cups vegetable or chicken broth
• 1 cup milk or cream (optional)
• salt and pepper, to taste
• 1 bunch chard, stems removed
• Dash of cider vinegar