INGREDIENTS: ¼ cup olive oil 6 large shallots, very thinly sliced 5 garlic cloves, 4 thinly sliced, 1 finely chopped  Kosher salt and freshly ground black pepper 1 teaspoon red-pepper flakes, plus more to taste 1 (2-ounce) can anchovy fillets (about 12), drained 1 (4.5-ounce) tube or (6-ounce) can of tomato …