Prepare the orange peels, taking care, as you peel the oranges, not to cut into the white pith beneath the skin, which is bitter. Soak the peels in a bowl filled with cold water for 36 hours, changing the water 5 or 6 times. Drain and dry thoroughly with kitchen towels.
Turn on the oven to 400°F.
Spread the peeled almonds on a baking sheet and dry the