Preheat the oven to 375 degrees F.
In a small skillet, melt the 2 tablespoons of the butter over medium heat and saute the habaneros until tender, about 4 minutes. Remove from heat and let cool slightly.
In a medium bowl, combine the flour, salt, baking powder and Parmesan. Mix together the egg, milk and habaneros in a separate bowl. Mix the wet ingredients into the dry ingredients by hand. When themixture comes together, knead it a few times. Roll the dough into 8 balls the size of a golf ball and arrange on a baking sheet lined with parchment paper. Bake until golden, about 25 minutes.
Tropical butter: In a small bowl, blend the butter, pineapple, honey and a pinch of salt until combined. Put butter in a small container and refrigerate until ready to use.
Arrange the buns on a serving platter and serve warm with Tropical Butter.