Salmon Cakes with Lemon Yogurt Sauce

Salmon:

- 1 lb skinless salmon fillet

- olive oil, for drizzling

- Kosher salt and freshly ground black pepper

Patties:

• 1 large egg, beaten
• 1/3 cup (1/2-ounce) chopped fresh chives
• Panko crumbs
• 1/2 cup frozen corn, thawed
• 2 tablespoons Dijon mustard
• 3 tablespoons mayonnaise, plus more, as needed
• 1 tablespoon capers, rinsed and drained
• 1 tablespoon lemon juice
• 1 tablespoon lemon zest
• 3 tablespoons vegetable oil
• 3 tablespoons unsalted butter, at room temperature