Step 1

Preheat oven to 180°C/160°C fan-forced. Line 2 large baking trays with baking paper. Using an electric mixer, beat egg, egg yolk, sugar and orange rind in a large bowl until pale and thick. Sift over flour and baking powder. Add almonds. Stir to combine. Turn out onto a lightly floured surface. Knead lightly until smooth. Divide dough in half. Shape halves into 20cmlong logs. Place on prepared trays. Flatten slightly.

Step 2

Bake for 30 minutes or until golden. Cool on trays for 15 minutes. Reduce oven to 140°C/120°C fan-forced. Using a serrated knife, slice logs diagonally into 5mm-thick slices. Discard ends.

Step 3

Place slices, in a single layer, on baking trays. Bake for 20 to 25 minutes, turning halfway through cooking, or until dry and crisp. Stand on trays for 5 minutes. Transfer to a wire rack to cool. Serve.