Caramelized Onion Tortilla - cooking recipe

Ingredients

1/4 cup olive oil, divided
1 lb yellow onion, finely chopped
6 eggs
salt and pepper, to taste
sage leaf, for garnish

Preparation

Heat 2 tablespoons of the olive oil in a large skillet over medium heat; add onions; cover and cook for about 15 minutes, stirring once half way through.
Reduce heat to low; cook, covered, stirring occasionally, until the onions are very soft and golden, about 45 minutes, let cool for 10 minutes.
Whisk together the eggs, salt and pepper in a medium bowl; Stir into onions.
Heat the remaining 2 tablespoons oil in a 10-inch skillet over medium heat; add the egg-onion mixture.
Cook undisturbed for 3 minutes, then occasionally loosen the edges with a spatula to allow the uncooked portion to flow to the bottom of the pan until eggs are almost set, about 10 minutes.
Place a plate over the top of the skillet; holding firmly together, invert the plate and the skillet so the tortilla falls onto the plate.
Slide the tortilla back into the skillet, browned side side up; Cook until the bottom is browned and the inside is cooked through BUT still moist, about 5 minutes.
Slide the tortilla onto a serving plate and cut into wedges, Serve hot, warm, or at room temperature, garnish with sage leaves.