Pat the shrimp completely dry with paper towels to ensure the batter sticks to the surface.
In a small bowl, whisk the egg and ice-cold sparkling water until the mixture is light and frothy.
Slowly whisk in the arrowroot powder, garlic powder, sea salt, and black pepper until a thin, smooth batter forms.
Heat the avocado oil in a large non-stick skillet over medium-high heat until it shimmers.
Dip each shrimp into the batter, letting the excess drip off, then carefully place them in the hot skillet.
Sear the shrimp for 2 to 3 minutes per side until the coating is golden brown and the shrimp is opaque.
In a small ramekin, whisk together the coconut aminos and grated ginger to create the dipping sauce.
Serve the hot, crispy shrimp immediately with the zesty dipping sauce on the side.