It’s nearly Cinco de Mayo, and lest we remind you, you plus margarita equals shameful acts never to speak of again.

James Beard Award-winning author Joanne Weir plus margarita? That equals Copita Tequileria y Comida, a cozy Mexican joint opening tomorrow in Sausalito.

Weir, inspired by a margarita-making challenge, transforms her adoration for Mexican cooking into seasonal dishes and a stacked bar. The waterfront spot opens to the sidewalk (with seating for twelve), and has bright white and orange walls, a glass-tiled back-lit bar, and a Mexican tiled rostizador (wood-fired rotisserie oven).

Rotisserie chicken (seasoned with chile guajillo), 24-hour carnitas, and tasty tacos (beer-battered fish and wild mushroom) sum up the standouts, while small plates and ceviches factor in the organic garden’s bounty.

Eighty-plus blue agave tequilas, mezcales, and tequila cocktails increase the fun quotient exponentially.

Should you go?

You do the math.

Copita Tequileria y Comida, 739 Bridgeway, at Anchor Street (415-331-7400 or copitarestaurant.com).

Photo: Aubrie Pick for DailyCandy