Step 1

Place the sliced potatoes in a pot and cover with water. Bring to a boil over high heat, then reduce to a simmer and cook until fork tender, 8 to 10 minutes. Drain the potatoes. Let cool slightly, then transfer the potatoes to a large bowl.

Step 2

While the potatoes are cooking, place the bacon and some salt in a large saute pan. Cook over medium-low heat until crisp, 8 to 10 minutes. Remove the bacon with a slotted spoon and add it to the bowl with the potatoes. Add the onions and a pinch of salt to the hot pan and cook until softened and translucent, about 5 minutes. Add the chicken stock, vinegar, mustard and chives and bring to a boil. Pour the dressing over the potatoes and toss to coat.

Step 3

Serve warm or at room temperature.