Prepare the Mushrooms: Clean the mushrooms and remove the stems. Pat them dry with a paper towel to avoid excess moisture.
Make the Batter: In a mixing bowl, combine flour, garlic powder, onion powder, paprika, salt, and pepper. Slowly whisk in the beer until the batter is smooth and slightly thick.
Heat the Oil: Heat vegetable oil in a deep pan or fryer to 350°F (175°C). You’ll need enough oil to fully submerge the mushrooms.
Coat the Mushrooms: Dip each mushroom into the batter, coating it completely. If you want extra crunch, dip the battered mushroom into cornstarch before frying.
Fry the Mushrooms: Carefully place the battered mushrooms into the hot oil, frying in batches to avoid overcrowding. Fry for 3-4 minutes or until golden brown and crispy.
Drain and Serve: Remove the mushrooms from the oil and place them on paper towels to drain. Season with a pinch of salt and serve hot with your favorite dipping sauce.