Whisk the eggs, sugar, orange and lemon zest until you have a pale, fluffy mixture.
Add sifted flour, baking powder and a pinch of salt, and mix until you have a soft dough, then add in the almonds and mix briefly.
Preheat oven to 360°F / 180℃ and arrange the baking rack onto the middle shelf.
Divide the dough into two parts and give each part an elongated shape to form a loaf. Brush each loaf with the egg yolk mixture, and transfer to a baking tray covered with parchment paper.
Bake for approximately 15 minutes or as long as necessary for the loaves rise slightly in size and are cooked through.
Remove from the oven, let them cool for a few minutes, and cut out the cantucci from each still hot loaf. The cantucci should be about 1.5 cm ( ½ inch) thick and possibly all evenly sized.
Transfer the biscotti back in the oven and bake them for 15-20 minutes at 150°C / 300℉, turning them halfway through the baking time to ensure they're evenly baked on both sides.
Remove from the oven and leave to cool in the same baking tray, then serve.
Notes
Please note that for all my baking recipes I like to use gram measurements as it is more accurate. However, US cups are also provided.Baking tips
This is optional, but toasting the almonds adds an extra layer of flavor to the biscotti.
To simplify your job, you can roughly chop the almonds before adding them to the cookie dough (this helps when you cut the loaves into slices).
If you want softer biscotti, mix 2 tablespoons of cold butter with the flour, before adding it to the rest of the ingredients.
For best results, I like to weigh and then sift the flour into the baking bowl, this helps avoid lumps in the dough.
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The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.