Brandy can be substituted in a recipe with apple juice, apple cider vinegar, white grape juice, diluted apricot syrup, diluted peach syrup or water, according to What's Cooking America. Brandy extract can also be used in place of brandy.
Food Subs recommends combining one part brandy extract with four parts water, fruit syrup or fruit juice to make a brandy substitute. Brandy is made from white wine and sometimes red wine. Several brandies are made from various fruits such as pears, plums and apples, which is why fruit juices and syrups make ideal substitutes for brandy when it is needed in a recipe.