Best vegan blueberry muffins

The muffins are fast and easy to make, no mixer required. They were inspired by the Fluffy Vegan Coconut Oil Banana Muffins. In many vegan quickbreads and muffins, bananas behave like eggs, binding, fluffing, and moistening the batter, and here a very ripe avocado does the same. I love banana bread and banana anything, but not everyone does, and kept them out. I also wanted true blueberry muffins, not banana blueberry.