One firm caution
Mathura-Braj is among India's heaviest bhang (cannabis) belts, and roadside thandai or lassi around the wider pilgrimage circuit can be laced with bhang, sometimes without clear warning. Never accept a thandai or 'special lassi' from an unknown stall. Stick to bottled drinks, temple prasad, or the trusted pure-vegetarian sweet-shops and kitchens named below, and you can enjoy Braj's sweets and khoya-peda safely.