Name: A burger for Rachael
Prep time: 35 min
Cook time: 30 min
Yield: 4
Cuisine: American
Ingredients: 4 large Idaho potatoes, scrubbed; 70 to 115 ml extra-virgin olive oil, divided; 4 to 5 sprigs fresh rosemary, finely chopped; Salt and freshly ground black pepper; 2 tsps crushed red pepper flakes, divided; 4 to 5 cloves garlic; 225 g ground sirloin; 225 g ground pork; 1 tbsp grill seasoning; 2 tsps fennel seed; 2 tsps Worcestershire sauce; 2 vine-ripe tomatoes; 1/2 red onion; 3 tbsps capers; Handful fresh flat-leaf parsley; 2 tsps anchovy paste; 1 tsp lemon zest; 170 g pitted black or green olives; 4 slices sharp provolone or thinly sliced smoked mozzarella; 4 crusty rolls, such as sesame kaiser rolls, split; 10 to 12 basil leaves, torn or shredded