01 - Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners or lightly grease it with nonstick spray.
02 - In a large mixing bowl, mash the avocado until it achieves a smooth consistency. Whisk in the vegetable oil, granulated sugar, eggs, vanilla extract, and Greek yogurt until thoroughly combined.
03 - In a separate bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt.
04 - Gently add the dry ingredients to the wet ingredient mixture. Stir carefully until just combined, ensuring not to overmix.
05 - Fold the semisweet chocolate chips into the batter. Reserve a portion of the chips for topping the muffins, if desired.
06 - Distribute the batter evenly among the prepared muffin cups, filling each approximately three-quarters full. Sprinkle any reserved chocolate chips on top of each muffin.
07 - Bake for 18 to 22 minutes, or until a toothpick inserted into the center of a muffin emerges clean.
08 - Let the muffins cool in the muffin tin for 5 minutes before transferring them to a wire rack to cool completely.