In a mixing bowl, combine almond flour, oat flour, protein powder, sweetener, and salt until evenly mixed.
In another bowl, whisk Greek yogurt, almond butter, vanilla, and almond milk until smooth.
Pour the wet mixture into the dry ingredients and fold gently until a thick cookie-dough-like batter forms. Add more almond milk only if needed.
Fold in sugar-free chocolate chips if using.
Press the dough evenly into a parchment-lined 8×8 pan.
In a small bowl, whisk almond butter, caramel syrup, melted coconut oil, and sea salt to create the caramel layer.
Pour the caramel over the cookie dough layer and spread evenly.
Drizzle melted chocolate over the top if desired.
Refrigerate for at least 45–60 minutes or freeze for 20–30 minutes until firm.
Slice into bars and serve chilled for best texture.