In 4-quart Dutch oven or deep fryer, heat oil (1 1/2 inches) to 350°. Cut fish into 8 serving pieces. Lightly coat fish with 3 to 4 tablespoons Bisquick® mix.

In medium bowl, mix remaining ingredients (except tartar sauce) with hand beater until smooth. (If batter is too thick, stir in additional beer, 1 tablespoon at a time, until desired consistency.) Dip fish into batter, letting excess drip into bowl.

Fry batches of fish in oil for about 4 minutes, turning once until golden brown. Remove with slotted spoon; drain on paper towels. Serve hot with tartar sauce.

Prep time: 15 minutes
Cook: 4 minutes