The method.
Three variables decide whether fried curds work: the temperature of the curd, the temperature of the oil, and the timing. Get all three right and these are bulletproof. Get any one wrong and you get either a greasy raw-batter mess or a blowout where the cheese escapes into the oil.
Get the curds cold.
Keep the curds in the fridge until the moment you batter them. Cold curds give you a crucial few extra seconds to crisp the batter before the cheese inside fully liquefies and threatens to burst out. Do not let them come to room temperature for this recipe — it's the opposite of how you'd eat them raw.
Make the batter.
Whisk flour, baking powder, salt, garlic powder, and pepper. Pour in the cold beer and whisk just until combined — a few lumps are fine. Overmixing develops gluten and makes the crust tough. The carbonation in the cold beer is what makes the batter lacy, so keep it cold and use it soon.
Heat the oil.
Bring the oil to 375°F in a heavy pot. Use a thermometer. Too cool and the batter absorbs oil and goes greasy; too hot and the batter burns before the cheese warms. 375°F is the number.
Fry in small batches.
Dip cold curds in batter, let the excess drip, and lower them into the oil a few at a time. Fry 30-45 seconds until golden. Don't crowd the pot — too many curds drop the oil temperature and you lose the crust. Pull them the instant they're golden; the cheese is molten by then.