In spite of of all the comments on TA, the Boudoir restaurant is actually not too difficult to find - so long as you don't look at any on-line map.
Driving west on the ring road from Bo Phut turn left on to Mae Nam 1 (otherwise known as Soi 1) at the Family Mart immediately before the first bridge, and then follow the signs - red, new and freshly painted. Driving east from Bang Po turn right on to Mae Nam 1 immediately after the second bridge.
The probable reason for so much confusion is that every on-line map puts the Boudoir in the wrong place. The most prevalent version places it just off Bang Po 1 instead of just off Mae Nam 1.
The restaurant itself is small, funky, colourful and interesting. Patrice is the chef and Magali looks after the guests, or rather that is the general division of labour between the pair. It appears that they took over the restaurant within the last year or so.
The two of us shared the baked camembert. It was big enough to be a starter for four. Came with three types of salami, a slice of parma ham and bread, Super tasty.
This was followed by seared tuna steak with small roast potatoes. Although marinated/basted in soya, it needed some additional moisture so we added some aoli. Could have done with a green veg of some sort. Beautifully cooked. The steak salt carmague was also served with roasted potatoes (only), perfectly cooked and great texture. The portions are quite large, so no dessert.
With a drink before and a couple of glasses of house wine (very good stuff for B 150 a glass), the bill was reasonable at c. B 2,500.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.