Chef Abra Berens has worked in Chicago, Ann Arbor, even Ireland. But she hasn’t forgotten her time in Leelanau County. That’s reflected in her continuing visits and efforts here. It’s also part and parcel of her cookbooks, including her latest, “Pulp: A Practical Guide to Cooking with Fruit,” which published last month. Like its predecessors, the book concentrates on one of the food groups. In this case, that’s fruit, complementing vegetables and grains. Berens will preside over a series of 50th anniversary dinners at Mawby Vineyards July 23, Aug. 20 and Sept. 17. She will also hold a book signing at Horizon Books on July 22.