Schramsberg Blanc de Blancs Napa Valley is a prestige California sparkling wine presented in a 1.5L magnum format — the equivalent of two standard bottles. Made by Schramsberg Vineyards, the pioneering Napa Valley sparkling wine house founded by Jack and Jamie Davies in 1965, this wine holds the distinction of being America's first commercially produced Chardonnay-based brut sparkling wine. The winery and its hand-dug 1880s caves are a registered California historic landmark on Diamond Mountain District.

Crafted entirely from Chardonnay grapes (Blanc de Blancs, meaning "white wine from white grapes"), this sparkling wine is produced using the traditional méthode traditionnelle process. Approximately 25% of the juice is fermented in oak barrels to build richness and complexity, while the bottles are hand riddled in Schramsberg's underground caves. The estate sources fruit from over 120 cool-climate vineyard sites across Carneros, Marin, Mendocino, and Sonoma for optimal freshness and acidity.

The wine offers lifted aromas of fresh Granny Smith apple, lemon-lime, and fresh baked bread, with hints of baked pineapple and toasted almonds. On the palate, vibrant flavors of Meyer lemon and tart apple deliver drive through the mid-palate, leading to a clean, refreshing finish. The 2021 vintage earned 95 points from Wine Enthusiast and 91 points from Wine Spectator. Schramsberg gained international recognition in 1972 when President Nixon chose it for the historic "Toast to Peace" dinner in Beijing. The magnum format is ideal for celebrations and entertaining.