I'm currently obsessed with this dressing. It's truly delicious and very easy to make.
1/2 cup of cashews (preferably soaked first, but it's ok if they're not)
The juice of one lemon
1 tsp lemon zest
2/3 cup water
1/4 cup olive oil
Sea salt to taste
Blend all the ingredients together until smooth and creamy. Adjust water for desired consistency.
The better your blender, the smoother it will be, but cashews are fortunately pretty soft (especially when soaked).
Use on salads or sandwiches.