In a bowl, mix together the flour, dry yeast and a pinch of salt. Add 1,3 cups (3 dl) of luke warm water. Stir thouroghly until getting a soft and sticky dough ball.
Transfer the dought to a flat, clean surface (sprinkled wih flour). Knead for 10 minutes to get a strecthy, smooth and somewhat sticky ball of dough. Place the dough in the bowl, cover with a plastic foil or a clean cloth and let it rest for one hour. Ideally, leave the dough to rest in the refrigerator for up to 12-24 hours.
If you are using whole black pepper, grind it using a coffee grinder or a small mortar and pestle. Preheat the oven to 230 °C/446 F.
When the dough has risen, make a well in the ball and sip in the black pepper. Knead until the black pepper is perfectly and evenly fused in the dough.
Place the dough in a round pan, springform pan or a smaller square baking tray (previously greased with olive oil). The dough should be about 2 cm thick, make sure you push it all the way to the edges. Let it rest for another 35 minutes.
When the dough has risen, prepare a bowl of warm water into which you will stick your fingers. Create several wells using your wet fingers on the surface of the focaccia.
Using a brush, cover the surface of focaccia with olive oil and sprinkle with coarse sea salt and the remains of black pepper.
Bake in the oven for about 20 minutes at 230 °C/446 F until focaccia gets a golden color. When baked, let it rest for 15 minutes before serving. Enjoy :)