45min · 6 servings Ingredients • 3/4 cup butter • 1 1/2 cups granulated sugar, divided • 3 tbsp vegetable oil • 2 tsp vanilla extract • 2 large eggs + 1 egg yolk • 3/4 cup all purpose flour • 1/2 tsp salt • 1/2 cup unsweetened cocoa powder • 3/4 cup chocolate chips
