Start by getting the oven ready. Set it to 350°F (175°C) and prepare a baking sheet by lining it with parchment paper or lightly greasing it so the cookies don’t stick.
In a large bowl, add the softened butter and sugar. Mix them together until the mixture looks light, creamy, and fluffy. This step helps give the cookies a soft texture.
Next, add the egg and vanilla extract to the bowl. Mix well until everything is smooth and fully combined.
In another bowl, mix together the flour, baking powder, baking soda, and salt. Slowly add this dry mixture into the wet ingredients, stirring as you go, until a soft dough forms.
Once the dough is ready, gently stir in the mini chocolate chips, making sure they are spread evenly throughout.
Scoop the dough into tablespoon-sized portions and place them on the baking sheet, leaving space between each one. Bake for about 10 to 12 minutes, or until the edges turn lightly golden.
Let the cookies cool on the baking sheet for a few minutes, and then transfer them to a cooling rack to finish cooling.