Preheat the oven to 350°F/175°C and grease the pans with oil.
Coarsely chop the almonds with a sharp knife or pulse them in a food processor.
In a medium bowl, whisk together sugar, oil, vanilla extract, orange zest, eggs, cake meal, and potato starch.
Stir in almonds and chocolate chips.
Using a wooden spoon and your hands, divide the dough into 2-3 pans; it depends on how big you would like your cookies to be. Press it down lightly to flatten the bottom.
Bake logs until golden, puffed, and just firm to the touch (about 35 minutes). Let them cool in the pans for 10 minutes. Then, carefully place them on a cooling rack for an additional 20 minutes.
Cut logs into ¾-inch thick slices with a serrated knife. The cookies should still be slightly doughy inside.
Mix the sugar and cinnamon.
Place the cookies on the baking sheet, cut side up, and sprinkle with half of the sugar-cinnamon mixture. Bake for 7-10 minutes.
Turn the cookies over, sprinkle the other side, and return them to the oven for another 7-10 minutes until firm with crisp edges.
Remove from the oven and allow to cool completely on a rack.