Potato and Tuna Croquettes with Pickle Sauce

Ингредиенты

• 1/2 cup (125 ml) sour cream
• 2 tablespoons (30 ml) mayonnaise
• 1/4 cup (60 ml) dill pickles, drained and finely chopped
• 4 small sweet pickles, drained and finely chopped
• 1 tablespoon (15 ml) dill pickle juice
• 1 tablespoon (15 ml) sweet pickle juice
• Salt and pepper
• 2 cups (500 ml) mashed potatoes
• 2 cans 170 g oil-packed tuna, drained
• 1 egg 

• 3/4 cup (180 ml) breadcrumbs
• 2 tablespoons (30 ml) butter
• 1 tablespoon (15 ml) olive oil