Lauri's Snickerdoodle Cookies

I don't know where this recipe comes from but in my mom's cookbook it is titled, "Lauri's Snickerdoodle Cookies." I don't remember creating any recipes of my own but I will say they always turn out good when I make them. I know others have tried and not been so fortunate. I don't know what I do different, but these always turn out so soft and yummy.

Lauri's Snickerdoodle Cookies

1 c. shortening
1 1/2 c. sugar
2 eggs
1 tsp vanilla
2 3/4 c. flour
2 tsp cream of tarter
1 tsp soda
1/4 tsp salt

2 Tbsp sugar
2 tsp cinnamon

Cream shortening, sugar, eggs and vanilla (only just slightly, keep it lumpy) Add dry ingredients. Mix only until ingredients are combined. Using a cook scoop, scoop balls of dough into cinnamon/sugar mixture and cover completely. Place on cookie sheet and bake for 10 minutes at 350 degrees.