Preheat the oil to 350-400 degrees.
Do not crowd the skillet; make sure there are 2-3 inches between each piece of fish when frying.
Add the all-purpose flour, baking powder, salt, chili lime seasoning, chipotle seasoning, and freshly cracked black peppercorns into a bowl.
Mix the flour thoroughly and add the Mexican beer.
Whisk until the consistency is smooth and not too thick or runny.
Place the beer batter into the fridge to chill for 30 minutes.
Add the oil to the skillet and preheat the oil to 350-400 degrees.
Dredge the pieces into the beer batter and gently add them to the hot oil.
Allow the fish to fry for 3-4 minutes per side.
Remove the fried fish using a slotted spoon or a pair of tongs.
Place the cooked fried on parchment paper or paper towel.