3 battered fish dilled tartar sauce Recipes

baking potatoes, peeled and cut into 2 1/2-by-1/3-inch sticks, vegetable oil, for frying, all-purpose flour, plus more for dredging, kosher salt, cold lager or pilsner, center-cut skinless cod or haddock fillet, cut into four 6-by-2-inch pieces, freshly ground pepper, malt vinegar , for serving, dilled tartar sauce, for serving (see note )

mayonnaise, dijon mustard, scallion , including green top chopped, lemon juice, chopped dilled gherkins, chopped capers, chopped fresh parsley, salt, fresh ground black pepper, cooking oil, for frying (approximately 1 quart), flour, egg, beaten to mix, beer, cod fish fillets or 2 lbs haddock or 2 lbs hake, cut into approximately 1 1/2-by-3-inch pieces