Preheat your oven to 180°C (350°F) and gather all your ingredients—soft slider buns, thinly sliced smoked ham, honey, Dijon mustard, apple cider vinegar, and melted butter.
Slice the buns horizontally in half, keeping the top and bottom pieces separate for easy assembly.
Lay the bottom halves of the buns in your baking dish, creating a neat layer that will hold your fillings.
Spread a thin layer of honey mustard on the cut side of each bottom bun—just enough to add flavor without making them soggy.
Layer the ham slices evenly over the honey mustard-coated buns, overlapping slightly to cover the bread completely. Roll up thicker slices for a neater look.
In a small bowl, whisk together honey, Dijon mustard, and apple cider vinegar until smooth and slightly glossy.
Use a basting brush to generously coat the ham layer with the honey mustard glaze, allowing it to shimmer and stick to the meat.
Place the top buns over the glazed ham, pressing down gently to help them stick together.
Brush the tops of the buns lightly with melted butter for a shiny, golden finish.
Bake uncovered in the preheated oven for 12-15 minutes, until the buns are golden around the edges and the glaze is bubbling and caramelized.
Remove from the oven, let rest for 3-5 minutes to settle the juices, then slice between the buns into individual sliders.
Serve warm, drizzled with any remaining glaze, and enjoy the sticky, savory-sweet flavors in every bite.
