Preheat oven to 350°F/180°C.

Mix water, oil and salt in a large bowl. Gradually add the cornmeal and mix with your hands until completely amalgamated. The dough should be firm enough to not stick to your hands and soft enough to not crack. If not add cornmeal or water.

Place a small bowl with water next to your dough bowl. Form small (half palm) or big (palm size) balls with your hands. Press them between your hands to form patties. Round the corners with wet hands to give them a smooth surface.

Heat the grilling pan for about 5 minutes, until very hot. Brush it with a teaspoon of olive oil and grill the arepas, 5 minutes per side. You are looking for a crispy layer on the outside (and brownish grilling strips).

Place the arepas on an oven tray, lined with parchment paper, and bake them for 15 minutes. Try tapping on one of them: if it sounds like it’s empty inside, they’re ready.