How to Make It
Fill a medium saucepan with 1-inch of water; fit with a steamer basket and bring to a boil over high heat. Add eggs, cover, and steam until hard-cooked, about 13 minutes. Transfer eggs to an ice bath and let sit until chilled, about 6 minutes. Peel. Discard shells.
Halve eggs. Scoop yolks into a medium bowl. Add mayo, mustard, vinegar, salt, and pepper; mix until smooth. Scoop mixture into a zip-top bag and cut off corner. Pipe yolk mixture evenly between whites. Sprinkle evenly with paprika. Serve immediately.