Do too many restaurants spoil the cook? That’s always the question when a chef builds on success by opening a second restaurant, then a third, and a fourth. Before you know it, the offspring have spread across the country like an infection, eventually lodging, fatally, in Vegas. As for the chef, she’s more likely to be on television than behind the stove.
Unless she’s Barbara Lynch, whose second and third and fourth restaurants didn’t even spread across the Charles. Lynch is Boston through and through - why would she want to leave? Since opening No. 9 Park more than a decade ago, she’s debuted B&G Oysters, the Butcher Shop, and Sportello, plus the bar Drink, the demonstration kitchen/cookbook store Stir, and the fruit-and-vegetable museum Plum Produce (currently closed for renovation). She just released a new cookbook, “Stir: Mixing It Up in the Italian Tradition,’’ and another high-end restaurant is slated to open in early 2010: She describes it as grown-up and glamorous, with French and Italian food and an emphasis on service and hospitality.