Addendum, the seasonal takeout counter tucked into the garden behind Thomas Keller's Ad Hoc in Yountville, quietly reopened last Friday and is set to run through Labor Day weekend. The small wood shack turns out picnic-style, counter-service lunches, with a rotating lineup of 12-inch pizzas, Keller’s signature buttermilk fried chicken, and new sandwich options like a shrimp po' boy and a pastrami Reuben. It is a laid-back setup built for lingering summer afternoons at the Ad Hoc garden tables.
What's on the menu
The current menu leans into comfort food and warm-weather crowd-pleasers: rotating 12-inch pizza specials, including a classic margherita and a spicy pepperoni with hot honey, sit alongside the buttermilk fried chicken that originally put Addendum on the map. As reported by the Napa Valley Register, the expanded sandwich lineup features a shrimp po' boy on Bouchon Bakery milk bread and a pastrami Reuben on Bouchon rye. Addendum is also offering picnic-style family platters, cookies, and soft-serve sundaes for dessert. The Register notes that the whole operation is built around a casual counter-service format meant for unhurried garden meals.
When and where to go
The seasonal stand operates Friday through Sunday from 11 AM to 2 PM, with service on some holiday Mondays during the summer. SFist covered the latest reopening and described Addendum as an established seasonal destination in the valley. A listing from Visit Napa Valley confirms that Addendum sits behind Ad Hoc and notes that it typically hibernates for fall and winter before returning for the summer season. Guests can expect walk-up counter service, to-go orders, and picnic tables instead of formal reservations.
Part of a Keller-run summer lineup
Addendum began as a backyard "shack" off Ad Hoc and has reappeared seasonally for years as a low-fuss offshoot of the Thomas Keller Restaurant Group, according to the Thomas Keller Restaurant Group. The limited hours help keep things casual and manageable during busy summer weekends while giving the team room to test rotating items like the pizza specials. For diners, it offers elevated comfort food without the formality or price tag of Keller's fine-dining flagship.
More information and current menu details are available from the Napa Valley Register and in local coverage by SFist. If you are heading over on a holiday weekend, plan to arrive early, since buckets of chicken and the best picnic spots tend to disappear fast.
