In a medium bowl whisk together the flour, cinnamon, baking powder, and salt; set aside.

In large bowl, beat the eggs and sugar on high speed until the sugar dissolves and the eggs become pale yellow and foamy. Add the pumpkin and vanilla and stir to blend. Add the butter and stir until well combined.

Gradually stir in the flour mixture until the dough comes together in a ball, then blend in the chopped cranberries.

Place the dough on a parchment lined baking sheet. Dough will be sticky. Lightly dust your hands with flour and shape the dough into a 4 inch wide by 1 inch tall log (it will probably make 2 logs–if so, space logs to allow for rising or use 2 baking sheets).

Place the baking sheet on the center rack of your oven and bake at 350 degrees for 50 minutes, or until the top of the log is golden brown and feels firm when you press it with your finger.

Allow the log to cool to room temperature, then cut into 1/2 inch slices.

Place slices on the baking sheet and bake another 25 to 30 minutes, or until they are crisp.