01 - 
                Preheat oven to 175°C. Grease and flour two 23 cm round cake pans.
              
              
              
                02 - 
                In a large bowl, cream together 170 g butter and granulated sugar until light and fluffy. Beat in eggs one at a time, then stir in vanilla extract.
              
              
              
                03 - 
                In a separate bowl, whisk together flour, baking powder, and salt. Gradually add to the butter mixture, alternating with cooled coffee, beginning and ending with dry ingredients.
              
              
              
                04 - 
                Divide batter evenly between prepared pans. Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out clean. Cool completely before assembling.
              
              
              
                05 - 
                Beat softened butter until creamy. Gradually add powdered sugar, then mix in cooled coffee and vanilla extract until smooth.
              
              
              
                06 - 
                Spread caramel sauce evenly between cake layers. Frost the entire cake with coffee buttercream. Optionally drizzle with additional caramel sauce.