Easter banana muffins

Name: Easter banana muffins
Prep time: 15 min
Cook time: 30 min
Yield: 10-12
Ingredients: 3 mature bananas (mashed); sunflower oil 100 ml; plant based milk 200 ml; vinegar 1 tbsp; salt ½ tsp; brown sugar 200g; self-raising flour 300 g; baking powder 1 tsp; vanilla syrup 1 tbsp; nibbed almonds or chopped walnuts