Step 1

Combine pork, orange juice, broth, onion, and oregano in the inner pot of an electric pressure cooker (such as Instant Pot®). Close and lock the lid. Select high pressure according to manufacturer's instructions; set timer for 20 minutes. Allow 10 to 15 minutes for pressure to build.

Step 2

Release pressure using the natural-release method according to manufacturer's instructions, 10 to 40 minutes. Unlock and remove lid.

Step 3

Remove pork from the pot and drain. Transfer to a serving dish.

Step 4

Place ancho chiles in a heat-proof bowl. Pour boiling water over chiles and soak for 15 minutes. Drain chiles, reserving soaking water.

Step 5

Combine 1/2 cup chile soaking water, soaked ancho chiles, apple cider vinegar, jalapeno pepper, garlic, cilantro, and cumin in a blender. Blend to form a thick sauce. Pour sauce over pork and mix well.