In a bowl, mix peanut butter, brown sugar, and apple sauce until incorporated.
Whisk in flour, baking soda and salt.
Gently combine all ingredients with a spatula until well combined.
Cover the dough and chill in the fridge for at least 1 hours (or overnight). You can also freeze for 30 minutes.
Preheat oven on 350F and line a baking sheet with parchment paper.
Using a cookie scooper or a spoon, scoop even sized cookie dough and place them in the prepare baking sheet. Lightly press it into a thick disk with your palm (the cookie will not expand too much). You can also press the cookie dough with a fork to make the crisscross marks on top.
Bake 350F for 8 – 9 minutes.
Let it cool for 10 minutes. Optionally, sprinkle a pinch of flaky sea salt on top and enjoy.
Notes:
*To make it refined sugar free – use coconut sugar**To make it gluten free – use (1:1) GF baking flour