Preheat oven to 350°F (175°C). Grease a 9-inch round cake pan.
In a food processor, puree the clementines, oil, and milk until completely smooth.
Add the sugar and process until just combined.
Add the eggs, almond extract, and vanilla extract, and pulse 5 to 6 times until just combined.
Add the flour, baking powder, and salt, and pulse until just combined.
Pour the batter into the prepared pan and bake for 55 minutes to 1 hour, or until a toothpick inserted into the center comes out with just a few moist crumbs.
Let the cake cool completely before frosting.
To make the whipped cream, combine the heavy cream, sugar, almond extract, salt, and clementine zest in a bowl and beat with an electric mixer until stiff peaks form.
Frost the cake with the whipped cream and sprinkle with the chopped almonds.