Tortilla de Sesos (Calf Brains Omelet)

Ingredients

• 1 whole calf brain (seso)
• to taste salt
• to taste vinegar
• 1 sprig parsley (perejil)
• 1 whole onion (cebolla)
• 3–4 eggs

Instructions

1. Clean the calf brain of the thin membrane covering it. Bring a pot of water to boil and add salt, vinegar, parsley, and onion. Place the brain in this liquid and cook through. Once cooked, remove from heat, allow to cool slightly, and cut into small pieces. Combine the brain pieces with the beaten eggs and cook as you would a regular tortilla (omelet), until the eggs are set.