Orange Biscotti (บิสคอตติส้ม)

1.Preheat the oven to 160°C, using the conventional setting.

2.Whisk together the eggs, egg yolks, sugar, rice bran oil, and orange concentrate until well combined.

3.Sift the all-purpose flour, baking powder, and salt, then fold them into the egg mixture.

4.Lightly dust the cookie dough with flour and divide it into two portions. Roll each portion into a log about 10 inches long and place them on a baking tray. Bake for 30 minutes.

5.Remove biscotti from the oven and let them rest for about 3 minutes. Then, slice the logs into 1 cm thick pieces and arrange them on the baking tray. Bake for another 10 minutes, then let them cool completely.

6.For Icing: Mix icing sugar, orange concentrate, and water until smooth. Transfer the mixture into a piping bag and drizzle over the biscotti. Allow the icing to set before serving.