Mix in blender, then microwave for 9 minutes.
Finely grate the carrot and set aside.
Dice the pear into small cubes.
Coarsely chop the walnuts.
Whisk eggs and erythritol together until foamy.
Add almond flour and baking powder, mix well.
Add the carrot, pear, and walnuts to the batter and mix evenly.
Pour the batter into the pan and bake at 180°C for 30 minutes.