Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper to prevent sticking.
In a mixing bowl, combine the melted coconut oil (reserve a small amount for later), agave syrup, coconut sugar, unsweetened applesauce, and vanilla extract. Whisk until smooth and well combined.
Add in about 4 tablespoons of the dairy-free mini chocolate chips to the wet mixture. Stir to evenly distribute them throughout the batter.
In a separate bowl, whisk together the almond flour, cocoa powder, coconut flour, baking soda, baking powder, and salt until there are no lumps.
Gradually add the dry mixture to the wet ingredients, stirring with a spatula until just combined. Be careful not to overmix!
Gently fold in the finely chopped walnuts and the remaining dairy-free chocolate chips to the dough.
Using a cookie scoop or tablespoon, drop the dough onto the prepared baking sheet, spacing them about 2 inches apart. Flatten them slightly for even baking.
Bake in the preheated oven for 10-12 minutes, or until the edges are set and the centers look slightly underbaked. They will firm up as they cool.
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. Enjoy your Vegan Chocolate-Walnut Brownie Cookies with a glass of almond milk or your favorite dairy-free beverage!