Preheat the oven to 180°C (356°F).
In a bowl, combine eggs, olive oil, and erythritol and mix well.
Add almond flour, baking powder, and tea leaves from the Earl Grey tea bag; mix thoroughly.
Pour the batter into a pound cake mold.
Bake in the oven at 180°C (356°F) for 25–30 minutes.
Let cool and slice for serving.