Authentic Rigó Jancsi Recipe Hungary, Europe

Name: Rigó Jancsi
Prep time: 50 min
Cook time: 10 min
Yield: 15 servings
Cuisine: Central European
Ingredients: SPONGE; 5 eggs; 150g (1 ¼ cups) all-purpose flour; 150g (3/4 cup) sugar; 25g (1 tbsp) unsweetened cocoa powder; 2 tbsp vegetable oil; pinch of salt; FILLING; 800 ml (3 ⅓ cups) whipping cream; 150g (1 ¼ cups) powdered sugar; 30-40g (1 ½ oz) unsweetened cocoa; 1 tbsp powdered gelatin; 4-5 tbsp water; vanilla extract, a few drops; GANACHE; 80g (3 oz) dark chocolate; 2 tbsp oil; 2 tbsp apricot jam; 2 tbsp rum, brandy or whisky