In a bowl, mix all seasoning ingredients. Sprinkle the prepared spicy mixture over the beef and toss to coat.
Turn the “saute” mode on your instant pot. Pour in olive oil and wait until hot. Add beef cubes and saute for 4-5 minutes or until browned. Take beef bites out of the instant pot.
Add chopped onion and garlic and cook for 1-2 minutes or until soft.
Pour in water and scrap all the bits off the bottom of the pressure cooker with a wooden spoon. Add butter. Return the beef bites back to the instant pot and stir. Turn the “saute” mode off.
Put the lid on and turn the valve to “sealing.” Press “pressure cook” (manual) and cook at high pressure for 9 minutes.
Once the cooking time ends, do a quick release, take the lid off, and toss the bites.
Pour some cooking juices over the meat and serve immediately garnished with chopped parsley (optional).