1Place the circular dough on a work surface and top with a burger patty, followed by sauce, sliced dill pickles, sautéed onions, and a slice of cheddar cheese.
2Fold the edges of the dough over the top to seal the ingredients inside, pressing the edges together.
3Place the sealed dough into a small ramekin to maintain its shape, then transfer to a baking tray lined with parchment paper.
4Brush the top of each burger bun with egg yolk and sprinkle with sesame seeds.