Heat 2 tablespoons of olive oil or butter in a non-stick skillet over medium heat until shimmering.

Add 1 medium onion, thinly sliced, to the skillet and sauté for about 5 minutes until translucent and softened.

Sprinkle 1 teaspoon of sugar over the onions and stir well to combine for about 1 minute.

Reduce heat to low and continue cooking the onions for 10-15 minutes, stirring occasionally until deep golden brown.

In a bowl, crack 4 large eggs and season with salt and black pepper. Whisk gently until combined.

Push onions to one side of the skillet, pour in the eggs, and cook undisturbed for about 2-3 minutes until edges start to set.

Once eggs are cooked to your liking, gently fold in the caramelized onions and serve immediately, garnished with fresh herbs if desired.