Preheat vegetable oil to 350º
Slice zucchinis into ¼” rings. Using circle cutters, punch out the centers of each ring.
Toss zucchini with ½ cup all-purpose flour until each zucchini ring has a light dusting of flour surrounding it. Set aside.
Combine remaining dry ingredients in a mixing bowl and whisk together.
Whisk in beer and ice cubes until mixture is smooth.
Dip zucchini rings, a few at a time, into the batter until fully coated.
Lift zucchini rings from the batter, shaking off any excess. Carefully drop the coated rings into the oil and fry for 3 to 4 minutes, until golden brown. Place cooked rings onto a cooling rack. Sprinkle with coarse Kosher salt.
Serve zucchini rings with a side of roasted garlic aioli or marinara.
