Covered-All-Over Lamington Cake | TASTE

Ingredients

• 2 ¼ c (285g) all-purpose flour, sifted
• 1 ½ c (300g) granulated sugar
• 1 tbsp baking powder
• 1 tsp salt
• ½ c (120ml) vegetable oil
• 7 lg egg yolks
• ¾ c (180ml) water
• 2 tsp lemon extract
• 7 lg egg whites
• ½ tsp cream of tartar
• 1 10½-oz (300g) jar of seedless raspberry jam
• 2 ⅔ c (250g) dried shredded coconut
• ¾ c ¾ cup + 2 tablespoons (200g) unsalted butter, softened
• 3 ¼ c (400g) confectioners’ sugar, sifted
• 2 tbsp whole milk
• 1 tsp vanilla extract
• 7 oz (200g) marshmallows