Shrimp Etouffee with Baklouti Olive Oil Roux

I know roux made with olive oil sounds crazy. Breathe (deeply). Now let's collectively get over it. If you're familiar with Cajun cuisine then you know about roux. And if you know about roux, you know it's a sacred pillar of the cuisine, revered, and ALWAYS made with a mixture of copious amounts of butter and flour.  If you're still with me, (I assume if you're still reading this, there exists at least a modicum of trust), then you'll make your roux forever more with extra virgin olive oil and never look back. It will be our delicious, healthy little...