Mix almond flour, baking powder, salt, and erythritol together in a bowl.
In another bowl, whisk together eggs, milk, and olive oil.
Combine the dry and wet ingredients, mixing well until smooth.
Pour the batter into a loaf pan and smooth the surface.
Bake in a preheated oven at 170°C for 30 minutes.
Let it cool completely, then remove and slice.