Hawaiian style butter rolls (NOT Hawaiian style bread)

In the islands you can find these at every bakery either in the display window or in a plastic bag with a twist-tie on top of the display case. They are NOT the rolls found in the stores here on the mainland that are like the King’s Hawaiian Sweet Rolls or anything close to that. These are more of a soft, fluffy, very light roll that appears to have been baked in a muffin tin as they have a “hat” (for lack of a better description). The bottom of each roll also seems to either have been dipped in melted butter after baking or perhaps a pat of butter is put under the dough before it is baked. Does anyone know what I’m talking about and where I can get a recipe for them? There used to be a Hawaiian bakery in Oxon Hill, MD that made them but they’ve gone out of business. TIA!