Preheat your oven to 350 degrees
Grease a loaf pan and line with parchment paper
In a large bowl, whisk 3/4 cup of softened butter with 2 large eggs, 1/2 cup of mayonnaise, 1/3 cup of whole milk and 2 teaspoons of pure vanilla extract until creamy
Add a cup of granulated sugar and whisk vigorously until fully incorporated
Add 2 cups of all purpose flour, 1 1/2 teaspoons of baking powder, 1/2 teaspoon of salt and 1 1/4 cups of mini chocolate chips and mix until everything is just combined
Transfer the batter into the prepared loaf pan and bake in a 350 degree oven for 60-70 minutes or until a toothpick will come out of the center clean
Let the loaf cool in the loaf pan for about 20 minutes before transferring onto a cutting board
Store fully cooled leftovers in an airtight container at room temperature for up to 4 days