Preheat oven to 375°. On a lightly floured surface, roll out French bread dough into a large rectangle. Cut into 8 thin strips.
Transfer strips to a lightly oiled baking sheet. Fold back every other strip and lay down first hot dog. Bring strips back over hot dog and fold back alternate strips. Lay down second hot dog and repeat weave process until you’ve reach the end of the strip (about 6 hot dogs).
Brush dough with melted butter and sprinkle with salt.
Bake until deeply golden, 20 to 25 minutes. Slice into squares and serve with yellow mustard.
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