Meanwhile, heat remaining 2 tablespoons of olive oil in large soup pot. Add onion and leek and saute until translucent, about 2-3 minutes. Add potatoes, turmeric, thyme, bay <g class="gr_ gr_243 gr-alert gr_gramm gr_run_anim Punctuation only-ins replaceWithoutSep" id="243" data-gr-id="243">leaf</g> and broth. Bring to a boil, then reduce heat and cook, covered, for 15 minutes.