Preheat oven to 350 degrees Fahrenheit 

Line 2 baking trays with parchment paper

In a bowl, mix the flour, salt, and baking powder. Set aside

In another bowl, using a mixer, cream the butter and sugar for 2-3 minutes or until mixture turns fluffy

Add the vanilla and egg yolks and keep mixing until combined

Slowly add the flour mixture to the butter and combine

Finally, using a spatula, fold in the chips to the cookie dough until completely combined

Using a piping bag or a zip-top bag, pipe in tiny mounds of cookie dough onto the baking trays

Bake for 8-10 minutes or until they brown on the edges (mine took 9 minutes)

Remove from oven and place them on cookie racks to cool. As they cool, they will finish baking and become crunchy