Preheat oven to 480°F or250°C. Add chickpeaflour, salt, and water to a bowl and blend with an immersion blender for 3 minutes till completely smooth. You can also use a regular blender.
With a spoon, remove some of the foam from the top of the chickpea batter.
Add olive oil to the baking sheet.You could use baking paper instead of oil on the baking sheet, but in that case, you'd have to add the oil to the batter.
Gently pour the chickpeabatter into the center of the tray, but first over a spoon and do not pour directly into the pan.
Bakeat480°F (250°C) for 10minutes, then set your oven to broiler and broil the farinata for another 8-10 minutes. It should be well cooked, golden and crispy on top, and soft and smooth on the bottom.
Remove from oven, cut it, sprinkle it with salt, freshlygroundblackpepper, and serve.Farinata is best eaten hot, right out of the oven.