To Prepare Salad: Heat 1-inch salted water (1/2 teaspoon salt to 1 cup water) to boiling. Add potatoes. Heat to boiling. Reduce heat. Cover and cook until tender, 30 to 35 minutes. Drain, cool and peel. Rub 2-quart bowl with garlic. Discard garlic. Cut potatoes into 1/4-inch slices and place in bowl. Dissolve bouillon in hot water. Add wine. Pour over potatoes. Cover and refrigerate, stirring once or twice. Drain. To Prepare Dressing: Shake all ingredients in tightly covered jar and gently toss with potatoes. Sprinkle with parsley. Garnish with tomato wedges if desired.