Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a mixing bowl, combine the peanut butter, maple syrup, and vanilla extract. Stir until well blended.
Add the almond flour and mix until fully incorporated.
Using a cookie scoop or spoon, drop rounded tablespoons of dough onto the prepared baking sheet.
Flatten each dough ball slightly with a fork to create a crisscross pattern and sprinkle with flaked sea salt if desired.
Bake for 12 minutes or until the edges begin to brown. Allow cookies to cool on a wire rack before serving.
