Vegan lemon cake

Name: Vegan lemon cake
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: European
Ingredients: 70 g / 1/3 cup caster sugar (fine sugar); 90 ml / 6 tbsp lemon juice; 320 ml / 1 + 1/3 cup plant milk; 45 ml / 3 tbsp lemon juice; 100 g / ½ cup neutral oil, like grapeseed oil*; 200 g / 1 cup caster sugar zest of 2-3 lemons; a smidge of turmeric, for colour (optional); 280 g / 2¼ cups plain flour or GF flour mix; 1 tsp baking soda; 1 tsp baking powder; ½ tsp xanthan gum (only GF version), optional; 50 g / 1/3 cup icing sugar; 12 ml / 2½ tsp lemon juice