Add cornmeal to a large bowl, pour over the olive oil and season generously with salt and pepper. Mix to combine with a fork.
Slowly pour in up to 120ml (1/2 cup) of cool water, mixing with a fork. Once the cornmeal reaches the consistency of wet sand and it easily holds together when squeezed, stop adding water. Add more than 120ml (1/2 cup) slowly, if needed, to reach this consistency.
Add a few tablespoons of neutral oil to a large skillet and set over medium-high heat. Once shimmering, divide the cornmeal mixture into 4 quadrants. One at a time, scoop a quarter of the cornmeal mixture and pack it into a patty in your hands. Immediately add it to the pan with the oil. Repeat with the remaining cornmeal mixture.
Cook the mchadi for about 5 minutes on one side, or until golden, before flipping and cooking for an additional 5 minutes. Serve immediately.
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Notes
Traditionally, mchadi is made with stone-ground white cornmeal. However, this can be hard to find depending on your locality. I developed this recipe using course ground yellow polenta (not the instant variety), which is much easier to find in many supermarkets.