To make the Leek Chips: Take 1 leek, slice in half vertically and wash well. Then cut each half into long thin vertical strips. Place the leek strips on a parchment lined baking sheet and toss with salt, pepper and oil. Try to spread them out in a single layer. Bake a 400 F for 30 minutes. Remove from oven and allow to cool.
To assemble, toast or grill the bread. Spread some Dijon on the bun, add a handful of leek chips, the burger and a scoop Tout Cru fermented Kimchi!