Preparation

1. 1. Grease 9-inch round cake pan and line the bottom with parchment paper. Preheat oven to 350°F with the rack in the middle of the oven.
2. 2. Insert the chopping blade into the work bowl of the food processor. Add the cup of pistachios, sugar, flour, almond meal, baking powder, and salt to the work bowl. Pulse a few times, then process on High for 1 minute to ensure the pistachios are finely chopped and the mixture is completely combined.
3. 3. With the machine running on Mix, slowly add the oil, eggs, and almond extract through the feed tube.
4. 4. Scrape down and then pulse a few more times if necessary. The batter will be very thick. Scrape it into the prepared cake pan and smooth over the top. Clean the work bowl and chopping blade.
5. 5. Put the cake into the preheated oven and bake until the cake is just coming away from the sides of the pan, about 35 to 40 minutes. Cool on rack and then remove from pan to cool completely before topping.
6. 6. When the cake is cool, prepare the filling and topping. Insert the chopping blade into the work bowl.
7. Add all the ingredients, except for the yogurt, to the bowl and process on Low to combine, then stop to scrape down the sides. Continue to process until very light and fluffy. Add the yogurt and mix on Low until desired consistency is achieved.
8. 7. Halve the cake to make two layers. Spread some of the cardamom cream in the center of the bottom layer, leaving a half-inch border. Top with the second cake layer and then put the remaining cardamom cream on the top. Spread evenly over the top and sides of the cake. Put in the refrigerator to chill for 30 minutes.
9. 8. Once chilled, decorate with the finely chopped pistachios.