Begin by boiling the baby potatoes in the Instant Pot or microwave until they are fork-tender. If using the Instant Pot, add 1 cup of water to the insert, place a trivet or steamer basket inside, and arrange the potatoes on top. Close the lid and set to Steam mode at high pressure for 6 minutes.

Once the potatoes are cooked, let the pressure release naturally for 10 minutes, then vent any remaining pressure. Carefully remove the potatoes and gently smash each potato until flattened but still holding together.

In a small bowl, mix your butter or olive oil with the garlic powder, smoked paprika, black pepper, and salt. Brush this mixture generously over the smashed potatoes.

Preheat your air fryer to 400°F (200°C). Arrange the smashed potatoes in a single layer in the basket. Air fry for 12 minutes; at the 8-minute mark, flip the potatoes, brush again with the seasoning mix, and continue cooking for another 4 minutes until crispy and golden.

Alternatively, preheat your oven to 400°F (200°C) and bake the potatoes on a baking sheet for 18-20 minutes.

Once done, take them out and give the potatoes a final brush with the butter or oil spice mix to enhance their flavor. Serve hot.