Preheat oven to 375 degrees. In a small bowl, beat remaining egg until blended; brush onto rolls. Bake until golden brown, about 17-20 minutes, rotating pans back to front and top to bottom halfway through. Melt 1-2 tablespoons of butter in the microwave; add the minced garlic, stir until well combined. Brush the garlic butter over the top of the rolls; sprinkle with sea salt. Let rolls cool 10 minutes before serving.