Easy Fish and Chips

Ingredients

• 4 cups vegetable oil, for frying
• 3 cups all-purpose flour, plus more to dust fish
• 2 tablespoons cornstarch
• 1 tablespoon baking powder
• Salt and freshly ground black pepper
• 2 bottles wheat beer
• 2 eggs, whisked
• 3 pounds cod fillets, cut in nice pieces
• Homemade Chips, recipe follows
• Lemon wedges, for serving
• Malt vinegar, for serving
• Tangy Tarter Sauce, recipe follows
• Peanut oil, for frying
• 3 russet potatoes, very thinly and evenly sliced
• Salt
• 1/2 cup creme fraiche
• 1/2 cup mayonnaise
• 3 tablespoons freshly grated horseradish
• 1 tablespoon capers, chopped
• 1 bunch chives, chopped
• 1 lemon, juiced
• Salt and freshly ground black pepper