Hungarian Dobos Torte

Ingredients

For the Sponge Layers

• 6 large eggs, separated
• ¾ cup granulated sugar
• 1 cup all-purpose flour
• 1 tsp vanilla extract
• Pinch of salt
• 2 tbsp melted butter

For the Chocolate Buttercream

• 1 cup unsalted butter, softened
• ¾ cup powdered sugar
• 5 oz (140 g) dark chocolate, melted and cooled
• 1 tsp vanilla extract

For the Caramel Topping

• 1 cup granulated sugar
• 2 tbsp water
• 1 tbsp butter