Preheat oven to 350°F. Line a large baking sheet, lined with parchment paper.
In a medium bowl, stir together psyllium husk, water, coconut sugar, coconut oil and vanilla until blended. Let stand 5 minutes.
In a large bowl, whisk together chickpea flour, coconut flour, potato starch, baking powder and salt. Add the psyllium mixture, stirring until just blended; stir in dried fruit. Divide dough in half.
Place dough on prepared baking sheet and, using moistened hands, shape into two parallel 10- by 3-inch rectangles, spaced about 3 inches apart.
Bake in preheated oven for 23 to 26 minutes or until golden and center is set. Let cool on pan on a wire rack for 15 minutes. Reduce oven temperature to 250°F.
Cut rectangles crosswise into ½-inch slices. Place slices, cut side down, on baking sheet. Bake for 25 minutes. Let cool on sheet for 1 minute, then transfer to wire racks to cool completely.