Easy Vegan Fruit Trifle with Microwave Sponge Cake

Name: Easy Vegan Fruit Trifle with Microwave Sponge Cake
Prep time: 5 min
Cook time: 2 min
Total time: 7 min
Cuisine: British
Ingredients: 4 tablespoons plain flour ((all-purpose flour)); 2 tablespoons caster sugar; 1/2 teaspoon baking powder; 1 pinch salt; 1 tablespoon mild oli ((or vegetable oil)); 3 1/2 tablespoons oat milk ((or whatever you usually buy)); 1/2 teaspoon vanilla extract; 4 teaspoons mandarin juice ((from the can or orange juice if you are using fresh mandarins or easy peelers)); 100 g mandarin segments ((or one peeled & segmented fresh mandarin/easy peeler etc)); 125 g vegan jelly ((I used ready to eat Hartley's orange jelly)); 6 tablespoons vegan custard; 6 tablespoons vegan double cream ((whipped with 1 teaspoon sugar)); 1 pinch sprinkles