Jeff Cohn Cellars GSM Sonoma Valley is a Rhône-style red blend crafted by winemaker Jeff Cohn, a passionate advocate for Grenache, Syrah, and Mourvèdre (GSM) varietal wines from Sonoma County, California. Jeff Cohn founded his boutique winery in 1996 after years as head winemaker at Rosenblum Cellars, and rebranded as Jeff Cohn Cellars in 2014, with operations centered in Healdsburg in the heart of Sonoma County.

The GSM draws fruit from heritage vineyards across Sonoma Valley, a warm, rolling appellation well suited to Rhône red varietals. Sourced from organically and sustainably farmed sites, the blend showcases the complexity and terroir-driven character that has made Jeff Cohn Cellars a consistently acclaimed producer among California Rhône Rangers. The winery's GSM bottlings have received 92-point scores from noted critic Jeb Dunnuck across multiple vintages.

Rich and structured with dark fruit, earthy spice, and the savory depth typical of Southern Rhône-inspired blends, this wine pairs well with grilled meats, roasted lamb, braised short ribs, and aged hard cheeses.