Wash the baby potatoes under cold water until they’re clean.
Place the potatoes in a pot and cover with cold water.
Bring the water to a rolling boil over medium heat.
Cook the potatoes for 15-20 minutes or until fork-tender.
Drain the potatoes thoroughly and return them to the pot.
Drizzle olive oil over the hot potatoes.
Gently press down on each potato until it’s about ½ inch thick.
Sprinkle garlic powder, salt, pepper, and chopped rosemary over the smashed potatoes.
Preheat your oven to 425°F (220°C).
Arrange the smashed potatoes on a baking sheet lined with parchment paper.
Bake for 20-25 minutes or until they’re golden brown and crispy on the edges.