$100 hot dogs get over-the-top treatment with caviar, Wagyu and 24-karat gold

Toppings for the humble hot dog have evolved way beyond standard ketchup and mustard. Upscale restaurants and venues these days are dressing dogs up with edible gold, caviar and price tags of up to $100.

The "Golden Glizzy" caviar hot dog by Miami-based Golden Goat is an Australian Wagyu hot dog topped with crème fraîche and mascarpone, 30 grams of Golden Goat Classic Ossetra, chives and 24-karat edible gold flakes, all served on Ficelle Bakery croissant dough. Each one sells for $100.

The...