Caramelized Shallot Pasta

Name: Caramelized Shallot Pasta
Cook time: 40 min
Total time: 40 min
Cuisine: Italian
Ingredients: 1/4 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 paste (about 1/2 to 3/4 cup); 10 ounces pasta; 1 cup parsley, leaves and tender stems, finely chopped; Flaky sea salt