Vegan Dollhouse - Vanilla Blueberry Cake

Ingredients

• 1 ¾ cups (415ml/415g) nondairy milk
• ¼ cup (60g) apple cider vinegar
• 1 ⅓ cups (300g) organic or vegan sugar
• ⅔ cup (135g) sunflower oil
• 1 tablespoon (12g) vanilla extract
• 3 ½ cups (455g) flour
• 1 ½ teaspoon (9-10g) baking soda
• ½ teaspoon (2-3g) baking powder
• 3 pinches of salt (optional)
• 1 pound (450g) fresh or frozen blueberries
• ¼ cup (50g) vegan sugar
• 2 tablespoons (16g) cornstarch
• half of a lemon
• 1 teaspoon (4g) vanilla extract
• ¼ cup (60g) water
• 1 ¾ cups (310-385g) vegan butter or margarine
• 1 ¾ cups (335g) organic palm shortening
• 8 ½ cups (1020g) organic powdered sugar
• 2 tablespoons (12g) cocoa powder
• ½ cup (56g) black cocoa powder
• 2-3 teaspoons nondairy milk or creamer, room temp (optional)