Preheat the oven to 350℉. Place muffin liners into your muffin pan (or grease with cooking spray) and set aside.
Combine the flour, baking soda and salt into a medium-sized bowl. Whisk or sift all ingredients together and set aside.
Mash the ripe bananas well and set aside.
Using the paddle attachment of your mixer, cream the butter until softened, about 1-2 minutes.
Add sugar to the butter and mix well. Scrape down the sides of your bowl.
Add eggs one at a time to the sugar/butter mixture, mixing well and scraping down the sides of the bowl after each addition.
Once the eggs have been incorporated, add the mashed banana, yogurt and vanilla to the mixture. Mix well.
Add in the flour mixture all at once. Mix on low speed until just combined – don’t over mix.
Using a spatula, carefully fold the mini chocolate chips into the batter.
Using a cookie or ice cream scoop, scoop the batter into the muffin tins, filling about each muffin well until it is about two-thirds full. If desired, add a few mini chocolate chips to the top of each muffin.
Bake at 350℉. For standard-sized muffins, bake for 15-18 minutes. For mini muffins, bake for 12-14 minutes and for small mini loaf pans, bake for 30-33 minutes. Regardless of pan size, bake until a toothpick inserted into the center of a muffin comes out with just a few crumbs or is clean.
Cool on a wire rack for about 5 minutes. Remove muffins from the pan and continue cooling on the rack until completely cooled. Makes about 20-22 standard muffins.