Prepare the Coffee Layer:
- Brew a cup of strong coffee and let it cool to room temperature.
- Stir in the sugar and coffee liqueur (if using). Set aside.
Prepare the Cream Layer:
- In a large mixing bowl, whip the heavy cream until it forms stiff peaks.
- In another bowl, beat the mascarpone cheese with powdered sugar and vanilla extract until smooth and creamy.
- Gently fold the whipped cream into the mascarpone mixture until well combined
