Vanilla, at 35% alcohol by volume, has 0.01 ounces of alcohol in a quarter teaspoon of vanilla extract. Bitters are 0.02 to 0.04 ounces per dash, depending on the size of your dashes. I searched PubMed and found this article that measured the amount of alcohol in non-alcoholic juices. Based on their findings, an 8 ounce glass of grape juice has 0.02 to 0.07 ounces of alcohol, apple juice has 0.005 to 0.05 ounces, and orange juice has 0.01 to 0.06 ounces. That is to say, there is no more alcohol in this mocktail than in a glass of fruit juice.