Gluten-Free Almond Flour Shortbread Cookies

https://www.kingarthurflour.com/recipes/gluten-free-almond-flour-shortbread-cookies-recipe
I was looking for something GF for a friend with celiac and another with intolerance.
Found this and decided it would be easy to add 'extras' - so far so good
					REFRIGERATE
PREP:	5 min			Cook time:	8 to 10 - I did 12
Temp:	350 F			Makes:	15 to 16
Ingredients:
1	cup	almond flour (I used meal)
3	Tbsp	softened butter
3	Tbsp	confectioner's sugar
1/8	tsp	salt
1/2	tsp	vanilla extract
PREP Steps
1	Heat the oven to 350°F
2	line a baking sheet with parchment paper.
tip:	reminder - if doing gluten free for Celiac, keep pristine.
Dough Steps:
3	mix all ingredients together in bowl
tip	I had to hand mix (literally by hand) and kneaded into shape
4	roll into log, keep splitting pieces in half until you end up with sixteen
Bake Steps:
5	arrange dough balls onto sheet about 1" apart
6	flatten slightly by hand or with fork to about 1/4" thick
7	bake for 8 to 12 minutes, turning every 4 minutes.
Finishing Steps:
8	remove from oven, cool in pan for 10, then transfer to rack and cool completely
Options:
1	Add 1/4 to 1/3 cup sliced almonds or walnuts to dough
2	Add 1/4 to 1/3 cup candied ginger to dough
3	surround chocolate disc or chocolate covered almond with dough
4	add 1/4 cup mini chocolate chips and 1/4 cup craisens
watch baking time as any of these options will make dough thicker and may take longer to bake