To cook barley grains, place 1 cup pearl barley and 3 cups of water in a medium saucepan. Bring to a boil. Reduce heat to low, cover and cook 45 minutes or until barley is tender and liquid is absorbed. Reserve 2 cups of cooked pearl barley.
Place any extra cooked barley in an airtight container and refrigerate or freeze for use later.
Place cooked barley grains, raisins, almonds, lemon juice and grated lemon peel in a 2 quart baking dish. Mix together honey, vanilla extract, eggs, milk and salt; pour over barley and raisins. Stir to mix well.