Crispy chickpea fritters tucked into a soft sesame roll is Palermo's iconic street sandwich. Vegetarian, high protein, and mediterranean, this snack is ideal for clean eats on the go.
In a medium saucepan, whisk chickpea flour with cold water, salt, and pepper until smooth—no lumps remain.
Place saucepan over medium heat and cook, stirring constantly with a wooden spoon, until thick and glossy and the mixture pulls from the sides, about 7–10 minutes. Lower the heat if the mixture bubbles too vigorously.
Stir in chopped parsley, then quickly spread the hot mixture to about 1/4-inch thickness on a parchment-lined baking sheet. Smooth the top evenly and let cool completely until firm, at least 30 minutes.
Once set, cut the cooled chickpea dough into rectangles or triangles about 2x3 inches each for fritters.
Heat olive oil in a large nonstick skillet over medium-high. Slide in the cut panelle in batches and fry 2–3 minutes per side, or until deep golden and crispy, adjusting heat as needed to prevent burning.
Split sesame rolls, stuff generously with hot panelle, and serve immediately.