Yes, absolutely! This Biscoff Tiramisu recipe can be made without alcohol. The coffee liqueur or dark rum mentioned in the recipe is optional for enhancing the flavor. Still, it can be omitted if you prefer a non-alcoholic version or want to avoid using alcohol in your desserts. Simply exclude the coffee liqueur or dark rum from the recipe when preparing the espresso and water mixture for dipping the Biscoff biscuits. The tiramisu will still be delicious and flavorful with the combination of mascarpone cheese, espresso-soaked biscuits, and creamy layers, even without the addition of alcohol. Enjoy creating a delightful non-alcoholic version of this dessert!