Juice the mandarins and sieve the juice into a large bowl.
Then add all the remaining wet ingredients and whisk to combine.
Sieve in the flour into the wet mixture, add a pinch of salt and mix with a silicon spatula.
Add the mixture into a piping bag and fill your donut mold.
Bake in a preheated oven at 180°C for 15-17 minutes.
Prepare the icing by mixing the juice with the powdered sugar.
Once the donuts are baked, let them cool down for few minutes, then remove them from the mold, and dip one by one into the glaze.
Once the glaze has set, double dip them and finish them with some mandarin zest.