Mix 3/4 cup of PBfit and 1/4 cup almond milk to make peanut butter, and set aside.
Grease and flour one 9x9x2 1/4 pan or brownie pan, and set aside.
In a blender, add avocado, oil, milk, and sugar. Blend until smooth.
Mix flour, salt, baking soda, cinnamon, and cocoa powder. Then add the wet ingredients to the dry ingredients, and add vanilla. Whisk until smooth. Finally, add 3/4 cup of chocolate chunks.
Spread batter into the baking pan then add teaspoons of peanut butter throughout the top of the batter spaced out. Use a chopstick or a small knife to make swirls all over. Top with the remaining 1/4 cup of chocolate chunks.