Ingredients:
- 2 packs of Maria biscuits (or any tea biscuits)
- 2 cups strong brewed coffee (cooled)
- 1 cup unsalted butter (room temperature)
- ¾ cup powdered sugar
- 3 egg yolks (optional, for richness)
- 1 tsp vanilla extract
- Crushed biscuits or coffee beans (for garnish)
