INGREDIENTS
4 tbsp
unsalted butter, at room temperature
2 tbsp
shortening
1/4 cup
light brown sugar
3 tbsp
granulated sugar
1
large egg yolk
3/4 tsp
vanilla
1/2 cup
+ 2 tablespoons flour
? teaspoon fine salt
? teaspoon instant espresso powder
1/4 tsp
baking soda
1/4 tsp
baking powder
? cup semi-sweet chocolate chips