Tiramisu Tres Leches Recipe

Name: Tiramisu Tres Leches Recipe
Cuisine: Mexican, Latin American, American
Ingredients: 113 g. (8 TB) softened unsalted butter; 200 g. (1 c.) sugar; 1 tsp. mexican vanilla; 1 tsp. kosher salt; 5 large eggs, room temp.; 180 g. (1 ¼ c.) all-purpose flour; 1 tsp. baking powder; 1 c. (8 oz.) whole milk + 2 TB. instant espresso or coffee; ½ can or 7 oz. sweetened condensed milk; ½ can or 6 oz. evaporated milk; Optional rum or cognac (about a tablespoon, or adjust to your liking); ¼ c. (2 oz.) water; 100 g. (½ c.) granulated sugar; 1 TB. instant coffee or espresso; Pinch of kosher or sea salt; 2 c. (16 oz.) heavy whipping cream; 1 8 oz. container softened mascarpone cheese; 60 g. (½ c.) powdered sugar; 1 tsp. Pure vanilla extract; Garnishes; Cocoa powder for dusting top of the cake