Step 1

Preheat the oven to 400°F (204°C). Bring a small pot of water to a boil.

Step 2

If using a regular-size baguette, slice off an end and cut the baguette into a length slightly shorter than your hot dog. If using a demi-baguette, slice both ends off. Cut or rip out some of the fluffy baguette interior to make space for the hot dog.

Step 3

Simmer the hot dog or sausage until warmed through. While it cooks, place the baguette in the warm oven to toast slightly, just for a minute or so.

Step 4

Spread a schmear of spicy mustard and ketchup, if desired, into the slit in the baguette and slide in the hot dog or sausage. Mange. (That's French for "cram it in your piehole.")