1-First Step: Preheat the oven to 350°F and prepare your workspace by greasing a 13×9-inch baking pan, which helps the rolls release easily after baking.

2-Second Step: Without separating the rolls, cut each package of soft sweet rolls in half horizontally, keeping them connected for easy assembly and even layering.

3-Third Step: Arrange the bottom halves of the rolls in the greased baking pan, then layer on the 1-1/4 pounds of thinly sliced deli ham, followed by the 9 slices of Swiss cheese and 24 dill pickle slices for a balanced flavor in every bite.

4-Fourth Step: Replace the top halves of the rolls on the layered ingredients to form the sliders, creating a neat sandwich stack that’s ready for the topping.

5-Fifth Step: In a microwave-safe bowl, melt the 1/2 cup of cubed butter, then stir in the 2 tablespoons of finely chopped onion and 2 tablespoons of Dijon mustard until well combined, and drizzle this mixture evenly over the assembled rolls for that signature taste.

6-Sixth Step: Cover the pan with foil and bake in the preheated oven for 10 minutes, then uncover and bake for an additional 5 to 10 minutes until the sliders are golden brown and heated through, checking for doneness to avoid overcooking.

7-Final Step: Once baked, let the sliders cool slightly, then slide a knife between the rolls to separate them and lift out with a spatula for serving, ensuring they stay intact and look appealing on the plate.