Strong Coffee or Espresso (Best Option)
1/4 cup per 1/4 cup beef brothCoffee or espresso is the traditional liquid used in tiramisu to soak the ladyfingers, imparting the signature bitter and aromatic notes that balance the sweetness of the mascarpone cream. The caffeine and roasted compounds in coffee contribute to the complex flavor profile expected in this dessert.
When substituting, use freshly brewed strong coffee or espresso and allow it to cool to room temperature before soaking the ladyfingers to avoid sogginess. Adjust the strength based on personal preference but maintain the 1:1 ratio to ensure proper moisture absorption.
This substitution preserves the authentic flavor and texture of tiramisu, making it the ideal replacement for any non-traditional liquids like beef broth.