De-skin and de-seed tomatoes in boiling water and set aside. Sauté butter, onion, garlic and shallots with butter in large pot. When onions are translucent, add carrots and cook until carrots are beginning to get tender. Add tomatoes, herbs and bay leaves. Sauté for another 45mins, stirring periodically to ensure even cooking. Finish with a quick puree in the blender.