Start by preheating your oven to 350°F (175°C). This ensures that your treats will bake evenly.

In a large mixing bowl, combine the whole wheat pastry flour, all-purpose flour, oats, cinnamon, and sea salt. Use a whisk to blend everything together well. This step is crucial as it distributes the ingredients evenly, ensuring every bite has a consistent flavor.

In a separate bowl, mix the peanut butter, honey, chicken stock, and olive oil. You can use a hand mixer or simply stir with a spoon until the mixture is smooth and creamy. The peanut butter should be well incorporated with the other liquids.

Slowly add the wet ingredients to the dry ingredients. Stir until a dough forms. It might seem a bit crumbly in the beginning, but keep mixing; eventually, it will come together. If the dough feels too dry, add a little more chicken stock, one tablespoon at a time.

Once the dough is mixed, turn it out onto a lightly floured surface. Roll it out to about 1/4 inch thick. Use cookie cutters to create fun shapes like bones or paws. If you don't have cookie cutters, you can simply cut the dough into squares with a knife.

Place the treats on a baking sheet lined with parchment paper. Bake in your preheated oven for about 20-25 minutes until golden brown. Keep an eye on them, as oven temperatures can vary. You want them crisp but not burnt!

Let the treats cool on a wire rack. Once completely cool, you can store them in an airtight container. They will keep for about two weeks at room temperature or can be frozen for longer shelf life.