Scallion Potato Pancake and Smoked-Salmon Sandwiches

Ingredients

• 2 pounds russet (baking) potatoes
• ½ cup crème frache or sour cream
• 2 tablespoons capers
• ½ small red onion
• ¾ pound sliced smoked salmon
• 2 ½ tablespoons unsalted butter
• 5 tablespoons vegetable oil
• + 1 more ingredients
• • ½ cup scallion greens

Preheat oven to 450°F. Peel potatoes and coarsely grate in a food processor. Stir together potatoes and scallions. Heat 1 tablespoon oil with 1/2 tablespoon butter in a 12-inch nonstick skillet over moderately high heat until foam subsides. Scoop 3 (1/4-cup) mounds of potato mixture into skillet,...

View full recipe at Epicurious