It used to be the only favors I asked of Helena Bedwell were for phone numbers of particular officials I could not otherwise get from my usual sources. Helena, a journalist for 25 years, knows everyone in Tbilisi. Then last week, I called her for some help of a more domestic kind: I wanted to learn how to cook a Georgian holiday dish. She offered to show me pelamushi, a voluptuous tooth-smacking porridge. A couple of years ago, the Georgian journalist published her first cookbook, “Georgian Flavors from Helena,” a homey, straightforward collection of her take on classic Georgian recipes designed for “busy and on-the-go” people like her who may be abroad and want to recreate Georgian dishes with a limited supply of time and ingredients.