To begin, preheat your oven to 200°C. Grease a medium sized baking dish (approx. 20x30 cm) with sunflower oil to prevent sticking. Move to mixing the dry ingredients.

In a large mixing bowl, whisk together the cornmeal, plain flour, baking powder, and salt until evenly combined. This prevents clumping when liquids are added. Transition to preparing the wet mixture.

In a separate bowl, beat the eggs lightly, then whisk in yoghurt, sparkling water, and sunflower oil until smooth. The sparkling water helps create a lighter texture. Move to combining both mixtures.

Gradually pour the wet mixture into the dry ingredients, stirring gently with a wooden spoon. Mix until just combined to avoid overworking the batter. Transition to adding the cheese.

Gently fold in the crumbled feta cheese until evenly distributed throughout the batter. Be careful not to overmix as this can make the bread dense. Move to pouring into the baking dish.

Pour the batter into the prepared dish, spreading it evenly with a spatula. Tap the dish lightly on the counter to release any trapped air bubbles. Proceed to baking.

Place the dish in the preheated oven and bake for 35–40 minutes until golden brown on top. A skewer inserted into the centre should come out clean. Transition to cooling before serving.

Remove the Proja from the oven and let it rest for 10 minutes in the dish. This allows it to set and makes slicing easier. Prepare for serving.

Cut into squares or slices and serve warm as a side with stews, grilled meats, or yoghurt. Presentation tip: garnish with fresh parsley or serve alongside ajvar for authentic Serbian flavour.