Heat the oil in a skillet over medium heat and add the cutlets. Sear until golden brown and turn to cook on the other side. Transfer to a dish, cover and reserve.
In the same skillet, melt ½ cup butter and let it boil until it begins to look golden. Add the lemon juice. It will sizzle. Add the capers, stir and serve.
At this point you may put the chicken back in the skillet or serve the cutlets with some sauce on top.
For the mashed yucca, put the pieces in a saucepan with the garlic cloves and water to cover. Bring to a boil and cook until tender (about 30 minutes). Add salt.
When the yucca is tender drain and mash it with the garlic cloves using a potato masher or a ricer. Return to the saucepan and add warm milk and butter, stirring with a wooden spoon until very smooth. Taste for seasoning.
Recipe by PERU DELIGHTS at https://perudelights.com/easy-chicken-with-caper-sauce-and-mashed-yucca/