Combine sugar, vinegar, water. Stir & cook until mixture boils. Cover and cook without stirring until syrup spins a thread 10 inches long. (232°F) Add butter. Beat egg yolks until thick. Pour syrup over the egg yolks in a fine stream, beating vigorously. Add baking powder & flavoring. Beat with beater until creamy. Store in refrigerator until needed. May be thinned with more fruit juice if necessary. |