1 potatoes mushrooms basil aioli Recipes

red potatoes, quartered (6 cups), portabella mushroom caps, olive oil, divided (or more if needed), salt, fresh ground black pepper, white pepper, dried thyme , crushed between your fingers, egg yolks, lemon juice, water, garlic , smashed, minced fresh basil, red wine vinegar, fresh baby spinach, rinsed and dried