The Cordusio Atrium: Gentle Pan-Seared Sea Scallops with Melted Radicchio Tardivo and Vermouth Brown Butter

Instructions

1. 1

   Prep the scallops by patting 1 lb jumbo sea scallops completely dry with paper towels to ensure flawless browning, then season both sides evenly with 0.5 tsp fine sea salt and 0.25 tsp freshly cracked black pepper. Trim 2 heads Radicchio di Treviso lengthwise into neat quarters, keeping the stem intact so the leaves stay anchored like tidy architectural arches.

   5 min

   Tip: Moisture is the enemy of a gentle sear; dry scallops yield a delicate caramel crust rather than steaming in the pan.

2. 2

   Heat 1 tbsp extra virgin olive oil and 1 tbsp unsalted butter in a wide, heavy-bottomed stainless steel or cast-iron skillet over medium heat. Arrange the quarters of 2 heads Radicchio di Treviso cut-side down, seasoning with the remaining 0.25 tsp fine sea salt. Sear gently without disturbing for 3 minutes until beautifully charred and tender at the edges.

   4 min

   Tip: Resist the urge to move the radicchio too early; a steady, gentle contact allows the bitter edges to caramelize into sweet richness.

3. 3

   Flip the radicchio, then pour in 0.33 cup dry white vermouth and drizzle 1 tsp aged balsamic vinegar over the heads. Lower heat slightly and let the liquid bubble down until glossy and mostly evaporated, about 2 minutes. Transfer the tender, glazed radicchio to warm serving plates, leaving all the aromatic pan drippings behind.

   3 min

   Tip: The vermouth acts as a structural deglazer, releasing all the fond while its herbal notes tame the radicchio's natural bitterness.

4. 4

   Increase heat to medium-high and add the remaining 1 tbsp extra virgin olive oil to the same skillet. Place 1 lb jumbo sea scallops flat-side down into the hot pan with ample space between them, letting them gently sear undisturbed for 2 minutes until a warm, golden foundation forms underneath.

   3 min

   Tip: Give them room to breathe; crowd the pan and they will braise instead of searing.

5. 5

   Flip the scallops carefully with a thin spatula. Add 6 fresh sage leaves and the remaining 2 tbsp unsalted butter to the pan. As the butter foams and takes on a nutty hazelnut aroma, spoon it continuously over the tops of the scallops for 1 to 2 minutes until just cooked through and translucent in the center. Immediately pull the skillet off the heat.

   2 min

   Tip: Arrostire con burro—basting with foaming butter cooks the scallops gently and prevents them from tightening into rubber.

6. 6

   Nestle the seared scallops immediately over the melted radicchio quarters. Spoon the fragrant pan butter and crisp sage leaves over the top, then garnish with 3 tbsp Piedmontese hazelnuts for an earthy, textural crunch.

   2 min

   Tip: Serve instantly while the residual heat keeps the scallop centers silken and tender.