How to Make the Ultimate Umami-Bomb Vegetarian Demi-Glace
1/4 cup extra-virgin olive oil
5 garlic cloves, smashed
1 pound medium shrimp, shelled and deveined
1 teaspoon fine sea salt
In a large resealable plastic bag, combine the olive oil and garlic. Add the shrimp and let marinate at room temperature for 30 minutes, turning occasionally, or refrigerate for up to 4 hours for a stronger garlic flavor.
Heat a heavy broiler pan or 2 large heavy skillets over 2 burners. Add the shrimp in a single layer and cook over moderate heat until browned on the bottom and pink around the edges, about 1 minute. Quickly turn the shrimp and cook until just opaque throughout, about 1 more minute. Transfer the shrimp to a medium bowl, toss with the salt and serve.