Sprinkle the puff pastry with sugar, cut in half crosswise, place one half on top of the other and roll up tightly like a roulade. Chill for approx. 30 mins. Cut the dough into approx. 0.5 cm slices, place on a baking tray lined with baking paper.
Approx. 15 mins. in the centre of an oven preheated to 220 °C. Leave to cool on a cooling rack.
Mix the carrot with all the other ingredients, chill until ready to serve.
Spoon a little carrot salad onto each slice of puff pastry, top with a scoop of ice cream and place a second slice of puff pastry on top. Garnish with the orange segments and serve with the orangettes.