Hi everyone, we use to have this neighbor up the street from us her name was Mrs.Kitchen, believe it or not lol, but she gave my mom THE BEST sugar cookie recipe ever. It was crispy, light, melt in your mouth, sugar cookies. They didn't require alott of chewing because they just melted in your mouth, they broke really easily as well but baked up beautifully everytime. They were smashed down with a jar dipped with colored sugar, we usually made them for Christmas with green and red sugar. I remember the recipe had both oil and butter in it and maybe even some powdered sugar, and cream of tartar, there was a good amount of cream of tartar that gave them a tiny zip. I believe my mom probably was given the recipe back in maybe the late 70s but it could have been an old recipe.My mom ended up losing the recipe somehow and we've been trying to figure out where it was from, like a publisher or a public recipe to no avail. None of the recipes I have tried that had the right ingredients have been THE ONE. Any help appreciated in finding out which recipe it was.

So I've made up a sugar cookie recipe that I really enjoy the flavor of, but it's a chewy sugar cookie. I very much prefer the texture of crunchy/crispy sugar cookies though, and was wondering how I would go about changing this to be more crisp without changing too much of the flavor?

320g AP Flour 6g Baking Soda 2.5g Baking Powder 2 Sticks of Softened Butter (1 cup)(225g) 150g White Sugar 156g Brown Sugar 1 large egg 1 tbsp Vanilla Extract (12.5g) 2g Kosher Salt (use only pinch if salted butter) 6g Cinnamon (optional) 1/8 tsp of nutmeg (optional)