Step 1

Mix the salt, pepper, and Ancho chili powder in a small bowl to make a spice rub. Sprinkle both sides of the ribs with the rub. Pour 1/2 cup of water into the pressure cooker pot (or use the minimum liquid amount for your pressure cooker). Stack the ribs in the pressure cooker bone side down. Lock the pressure cooker lid.

Step 2

Pressure cook on high pressure for 25 minutes in an electric pressure cooker or 20 minutes in a stovetop PC. (“Manual” or “Pressure Cook” mode in an Instant Pot.) After the cooking time, let the pressure come down naturally until the pressure valve drops, about 15 more minutes.

Step 3

Put the ribs bone side down on a rimmed baking sheet. Broil the ribs until the meat starts to crackle and brown, about 5 minutes. Remove the ribs from the broiler and serve.