Step 1

Season pork with salt and pepper. Heat 2 tablespoons oil in an electric pressure cooker set to sauté. Working in batches, brown pork all over (adding 1 more tablespoon oil if needed), 16 to 20 minutes total. Remove pork and switch cooker off. Let pork cool slightly; cut into 1-inch chunks.

Step 2

Return cooker to sauté setting. Add onion, season with salt and pepper, and cook until translucent, about 3 minutes. Return pork to cooker with canned chiles and salsa. Secure lid and manually set cooker to high. Set timer for 35 minutes and let come to pressure.

Step 3

Once time is complete, switch off and manually release pressure, then remove lid. Let cool 10 minutes; skim fat. Serve with accompaniments.