Beer Batter Fish and Spicy Chips with Lemon-Habanero Tartar Sauce and Serrano Vinegar Recipe | Samsu

Ingredients

• 2 tablespoons kosher salt
• 1 tablespoon ancho chili powder
• 1 teaspoon chili de arbol powder
• 4 large baking potatoes, like russets, about 3 pounds
• Canola oil, for frying
• Chopped cilantro leaves
• Canola or Peanut oil
• 2 cups all-purpose flour, plus 1 cup for dredging
• Salt
• freshly ground black pepper
• 2 cups beer
• 3 large egg whites, beaten to stiff peaks
• 3 pounds cod or haddock, cut into 6-ounce pieces
• Lemon-Habanero Tartar Sauce, recipe follows
• Serrano Vinegar, recipe follows
• 3 cups lemon juice
• 1 1/2 cups prepared mayonnaise
• 2 anchovy fillets, chopped
• 1/2 habanero, chopped
• 6 cornichon, finely diced
• 2 tablespoons capers
• 2 cups white wine vinegar
• 8 serrano chiles, pricked with a fork
• 1 tablespoon salt