Take the apple, peel it, clean it by removing the core, grate it with a grater, and set it aside temporarily.
Crack the egg into a bowl and add the stevia sweetener (or sugar), then mix with a hand whisk.
Add the yogurt, mix well, then add the grated apple and lemon zest. Mix with a spatula until you achieve a homogeneous consistency.
Sift the flour and baking powder into the mixture and incorporate them gently until well combined.
Heat a non-stick pan and drizzle it with oil. Pour two tablespoons of the mixture into the pan to form each pancake.
Cook the pancakes on both sides until they are nicely browned and cooked through.
Once the pancakes are ready, garnish them with a pinch of icing sugar mixed with cinnamon for extra sweetness and flavor.