Dad's Poached Salmon with Cucumber Sauce

1. Combine all poaching liquid ingredients in a medium saucepan. Bring the poaching liquid to a very low simmer and cook 30 minutes. Skim the top as needed to remove any foam from the surface. Lay some cheesecloth over the top of the poaching liquid, making a bed for the fillets. Submerge salmon in poaching liquid and cook for 8 to 10 minutes.

For the cucumber sauce:

1. 1 English cucumber, unpeeled, roughly chopped
2. Fronds from 1 bunch dill (about 1 cup)
3. 1/2 small red onion
4. 2 large lemons, juiced
5. 1/3 cup mayonnaise
6. 2 tablespoons extra-virgin olive oil
7. 1/3 cup yogurt
8. Salt and freshly ground black pepper
9. Combine first four ingredients in a blender and puree. Gradually blend in mayonnaise, oil and yogurt and then season, to taste, with salt and pepper.
10. Serve poached salmon with side of sauce.