Pre-heat the oven to 350 degrees and grease an 8-inch round cake pan.
Combine the egg replacer and water in a large bowl and whisk until thick.
Add ¾ cup coconut nectar, coconut oil and vanilla. Whisk to combine.
Add the all-purpose and whole wheat flour, ground pistachios, baking powder and salt to the bowl and use a spatula to fold the dry ingredients into the wet until completely combined.
Pour the batter into the prepared pan and bake for 40 minutes, then transfer to a wire rack to cool.
While the cake cools combine the remaining coconut nectar and the coconut cream in a bowl. Use a hand mixer to beat until light and fluffy.
Top cake with coconut cream and a sprinkle of whole pistachios.