Mashed Potato Cake with Tuna and Avocado | Saveur

Ingredients

• 4 lb. boiling potatoes
• Salt
• ¹⁄₄ cup vegetable oil
• ¹⁄₄ cup extra-virgin olive oil
• 6 Tbsp. freshly squeezed lime juice
• 4 tsp. rocoto paste (hot red chile paste)
• 2 Tbsp. finely chopped white onions
• 3 (6-oz.) cans oil-packed tuna, drained
• 1 cup mayonnaise
• 2 avocados, peeled and cut into 1'' cubes
• 8 hard-cooked eggs, peeled and sliced
• 4-6 Greek-style black olives, pitted and halved lengthwise