- Who
- Planetary Matters (Russ Bennett, Alan Newman, Mike Pelchar), Russ Bennett, Mike Pelchar, Alan Newman
- What
- 155.58 kilogram(s)
- Where
- United States (Middlesex)
- When
The largest s'more is 155.58 kg (342 lb 15 oz), and was achieved by Planetary Matters (USA) in Middlesex, Vermont, USA, on 28 December 2019.
This attempt took place at Winter S'morestice, an annual community event in Middlesex, Vermont.
