The texture? Ultra-soft. The chocolate level? Ultra-rich. And unbelievably, these brownies don't contain milk or eggs, but instead - vinegar! Vinegar is a healthy addition to any diet, a useful cleaning tool, and also an indispensable ingredient when it comes to making delicious vegan desserts. When mixed with baking soda, apple cider vinegar creates a chemical reaction that makes these brownies light and fluffy, without a trace of bitter taste. For a gluten-free version, a mix of almond powder and rice flour works wonders, try if for yourself!