Ingredients
1 cup all-purpose flour
1/2 teaspoon baking poweder
1/2 teaspoon salt
1/2 cup unsweetened cocoa powder
3/4 cup unslated butter
2 tablespoons oil (any kind will do)
1 and 1/3 cups granulated sugar (divided)
2 large egs
1 large egg yolk
2 teaspoons vanilla extract
3/4 cup chocolate chips