Very famous mango sticky rice shop. Annoyingly it was closed for the weekend when I arrived on a Friday afternoon. But I went back another day, earlier on (around 1pm) and it was open. It was closed on a Sunday too, so I'm assuming it's closed weekends.
It cost 100B for a very tasty and fresh mango sticky rice. However, I'm not sure it's worth a special visit when there are plenty of good options all over Thailand.
The stall outside was selling delicious mangoes (3 for 100B) even when the shop was closed.