1. Preheat oven to 350 degrees F. In a medium bowl combine flour, the 1/4 cup sugar, baking powder, and salt. Add milk, oil, and vanilla. Whisk until smooth. Stir in chocolate-hazelnut spread and chocolate pieces.
2. Divide batter evenly among six 5- to 8-oz. oven-safe bowls or ramekins. Place in a 15 x 10 x 1-inch baking pan. Set aside. In the same bowl for the batter, stir together 1/2 cup sugar and cocoa. Gradually stir in boiling water. Pour evenly over batter in dishes.
3. Bake, uncovered, for 20 minutes or until a wooden toothpick inserted into cake portion comes out clean. Serve warm with ice cream and strawberries. Sprinkle with additional cocoa powder.