Place 3 cups of flour in a large mixing bowl. Set the other two cups aside for later.
Mix in ¾ tsp salt.
Pour in 2 cups beer and whisk until evenly mixed. The mix will be thick.
Slowly add small amounts of water, mixing thoroughly until batter is a pancake mix consistency. You may not need all of the water. Be careful not to thin the batter too much.
Crack and add 3 eggs, mix thoroughly.
Place in the refrigerator uncovered for at least one hour.
Remove chicken marinade and beer batter from refrigerator.
Place the two cups of flour set aside from the batter recipe on a plate or a flat surface.
Heat oil in a frying pan to just before the smoke point (temperature varies by oil type). If the oil is smoking, reduce heat.
Lightly flour chicken pieces and place in batter with a pair of tongs. After chicken pieces are thoroughly coated, SLOWLY place into the oil in the frying pan.
Let cook for 5 to 7 minutes undisturbed and gently flip. Repeat process until the chicken pieces have reached an internal temperature of 170 degrees and is golden brown. It is important to let the chicken cook undisturbed, only moving it to flip.
Place chicken on a wire baking rack to drain and cool (paper towels will cause the chicken to become soft and mushy on the bottom). Once cool, serve and enjoy!