Fudgy Chocolate Crinkle Cookies • Kroll's Korner

Ingredients

• 8 oz. semi-sweet chocolate bars (I used 2, 4 oz. Ghirardelli Bars)
• 4 Tbsp. unsalted butter
• 1 Tbsp. canola or vegetable oil
• 1 tsp. vanilla
• 1 tsp. balsamic vinegar
• 2 large eggs, room temperature
• 3/4 cups powdered sugar
• 1/2 cup granulated sugar
• 1/2 cup all-purpose flour, spooned and leveled
• 1/2 cup dutch process cocoa powder
• 1 tsp. cornstarch
• 1 tsp. espresso powder
• 1 tsp. salt
• 1/4 cup granulated sugar
• 1/2 cup powdered sugar, or more as needed