1Combine softened butter, minced garlic, peri-peri seasoning, smoked paprika, cayenne pepper, and half the sea salt in a small mixing bowl until thoroughly blended, about 2 minutes. Set aside at room temperature to allow flavors to meld while preparing corn.
2Bring a large pot of salted water to a rolling boil over high heat. Add corn ears and boil until kernels are tender-crisp, about 8-10 minutes. Test doneness by piercing a kernel with a fork - it should be tender but still have slight bite.
3Drain corn immediately and transfer to a serving platter while still steaming hot. Brush each ear generously with the prepared garlic butter mixture, rotating to coat all sides evenly. The heat from the corn will melt the butter and help it absorb into the kernels.
4Drizzle fresh lemon juice over each buttered ear, then brush with remaining garlic butter for a second coating. Sprinkle with remaining sea salt and freshly ground black pepper.
5Garnish with chopped fresh parsley immediately before serving, distributing evenly over all ears.