Preparation

Make the guacamole

• 将一半的洋葱和一半的香菜混合在切菜板上（或在莫尔卡特或砂浆中，如果有的话），将其与辣椒和盐一起。用一把大刀将其切碎，然后用刀子捣碎，以形成糊状物（或用杵捣碎）。转移到碗中。对鳄梨进行评分，将两半扭曲，然后用大汤匙将肉从皮肤上刮掉。加入剩余的洋葱和香菜，并与叉子一起搅拌。

• Peel the potatoes and cut them into 1⁄2-inch dice. Cook in a saucepan of boiling salted water until they are just cooked through and still hold their shape, about 5 minutes. Drain.
• Remove the casings from the chorizo and crumble (Mexican) or finely chop (Spanish) the meat. Cook the chorizo in a large skillet (add a tsp. of oil if using Spanish chorizo) over medium heat, stirring, for 5 minutes. Add the potato and oregano and cook, stirring, for 5 minutes. Season with salt to taste.
• Make tacos with the tortillas, guacamole, and queso fresco, if using.