Line two cookie sheets with parchment paper or silicone mats.
Mix the first 5 dry ingredients, lemon and orange rind together in a large bowl
Remove 2 tablespoonfuls of water from the measured amount and put it in a small bowl. Add the ammonia and stir to dissolve.
Add the ammonia water to the flour mixture, then begin adding the rest of the water a little at a time, mixing until you have a fairly stiff dough. (You may not need all the water.)
Add in the almonds, hazelnuts and tangerine peel; turn out onto a floured surface and mix until the ingredients are well incorporated.
Form little rings (70 g each) about 3" in diameter by making a sausage shape and joining the ends together. Place on prepared cookie sheet and press down a little to flatten. Repeat until all the dough is used.
Brush the top of the roccocò with the beaten egg and place into the preheated oven to bake for 15 to 25 minutes (switching top and bottom trays halfway through baking.) Be sure they are golden brown at minimum: the longer they bake, the harder they will be.
Remove from oven when ready and cool on rack. Store in airtight container, preferably a tin. These harder baked Italian Christmas cookies will last for up to 6 weeks.
Notes
Recipe slightly adapted from Panificio Boccia. Ischia, Italy- GRAZIE!
Baking ammonia is easiest to find online (or in Italy.)
Pisto is the traditional spice blend, but this blend is almost identical.
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