In a large bowl, combine all ingredients. Mix until well incorporated. If the mixture is too wet, add a little more flour until you achieve a thick dough consistency.
Spread the mixture evenly on a silicone baking mat or parchment-lined cookie sheet.
Bake at 350 degrees for 10-15 minutes.
Remove from oven and use a pizza cutter to cut the partially baked dough into squares.
Return to the oven and bake for an additional 15-20 minutes, or until they reach a chewy cookie consistency.
Allow the treats to cool before serving. Store any leftovers in an airtight container.