about 565ml olive oil -I used less (200ml canola oil and 150ml olive oil)
1 lemon (start with half a lemon and taste as you go along)
1/4 tsp sea salt
good pinch of black pepper
Instructions
Place the yolk and mustard in a bowl and whisk together. You can also use a food processor.
While whisking, slowly add oil, drop by drop.
Once you blended about 3 tbsp of the oil and the mixture begins to thicken, you can pour in the rest of the oil in a continuous trickle. Continue whisking.
Add a good squeeze of lemon juice and season with salt and pepper.