Jafa Kocke / Jaffa Cake Squares

Name: Jafa Kocke / Jaffa Cake Squares
Prep time: 30 min
Cook time: 40 min
Total time: 1 h 10 min
Ingredients: 3 large eggs (6 total); 1/2 cup (100 g) granulated sugar (1 cup/200 g total); 1/3 cup (100 ml) milk (2/3 cup/200 ml total); 1/4 cup (60 ml) oil (1/2 cup/120 ml total); 1/4 teaspoon (2.5 ml) vanilla extract (1/2 teaspoon/5 ml total); 1/2 tablespoon (7 g) baking powder (1 tablespoon/14 g total); 1 cup (120 g) flour (2 cups/240 g total); 2 medium oranges, frozen solid; 2 + 1/3 cups (500 + 80 ml) orange juice; 1/2 cup (100 g) granulated sugar; 5 tablespoons (100 g) orange marmalade; 1 cup semi-sweet chocolate chips (200 g cokolade za kuvanje); 2 teaspoons (10 ml) oil