Preheat the oven to 350F.
Whisk together the flour, salt and baking powder in a small bowl.
In a stand mixer, beat together the butter and sugars, scraping down the sides, until the butter mix is light and fluffy, about 3-5 minutes.
While this is happening, create the flax egg by whisking together the flax meal and water. Let this sit to form a gel.
Add the flax and vanilla to the stand mixer and beat again until the batter is smooth, about 2 more minutes.
Gently fold in the dry ingredients to form a dough. Then fold in the thawed cherries (make sure you drain any excess liquid from them before you add them in!)
Portion the cookies out into 8 equal balls, about 64 grams each. Sprinkle the top of each cookie with sugar and flakey salt.
If you have the time, let them chill for 30 minutes before baking on a parchment lined baking sheet.
Bake at 350F for 14-16 minutes. Let the cookies cool on a baking sheet.
Serve whenever!