Place the baby Yukon gold potatoes in a large pot and cover them with cold water. Add a generous pinch of salt and bring to a boil. Cook until the potatoes are tender and easily pierced with a fork, about 15-20 minutes.
While the potatoes are boiling, preheat your oven to 425°F (220°C).
In a small saucepan over low heat, melt the butter. Add the minced garlic and cook gently, stirring frequently, for about 2-3 minutes until fragrant (be careful not to let it brown).
Once the potatoes are cooked, drain them and place them on a baking sheet lined with parchment paper. Using a fork or a potato masher, gently smash each potato until flattened but still intact.
Drizzle the garlic butter over the smashed potatoes, ensuring each potato is well-coated. Sprinkle them with Parmesan cheese, smoked paprika (if using), and season with salt and pepper.
Roast in the preheated oven for about 20-25 minutes or until the edges are crispy and the cheese has melted and become slightly golden.
Remove from the oven and sprinkle with fresh chopped parsley for a burst of color and flavor.
Notes
For extra flavor, add more garlic or herbs as desired.