Orange extract can be substituted for orange zest. Use 1/2 teaspoon of extract for every tablespoon of fresh orange zest called for in a recipe. If a recipe calls for dried orange zest, use 1 1/2 teaspoons of orange extract for every tablespoon of dried orange zest called for in the recipe.
Orange extract is often used in recipes to flavor frostings, cakes and liqueurs. Orange extract is made from pure orange oil. For the best taste, use only 100 percent pure natural orange extract. Avoid extracts with gluten, added sugar, or terpenes. Terpenes are naturally present in citrus fruits and can ruin the extract over time.