Three Root Vegetable Soup

Name: Three Root Vegetable Soup
Ingredients: 1 tablespoon of olive oil; 2 tablespoons of butter; 2 teaspoons of salt; 1 teaspoon of pepper; 2 cups white onion (finely chopped); 1 teaspoon Thyme (finely chopped); 1 teaspoon Rosemary (finely chopped); 1-2 Parsnips (2 cups - peeled and chopped into 1 inch pieces); 1-2 Turnips (2 cups - peeled and chopped into 1 inch pieces); 3-4 Carrots (2 cups - peeled and chopped into 1 inch pieces); 5 cups of chicken broth (can also substitute with vegetable broth); Crème fraiche and toasted pumpkin seeds for garnish (optional)