Oh. My. Gosh. This improvised dinner that was absolutely, fabulously divine, with a hint of earthiness from the mushrooms, flavor from the leeks, and brightness from the artichoke hearts all coming together to coat the penne with love and delicioiusness. It’s easy to make, with a simple broth of just artichoke water, butter, and olive oil thickened with a bit of flour. Read on!