Place butter in a small sauce pan. Place on medium heat. Allow butter to melt, swirling pan occasionally.
Once the butter gives off a nutty aroma, or you can see brown bits at the bottom of the pan, remove the pan from the heat.
Transfer butter to a heat proof bowl scrapping all the brown bits off the bottom.
Set aside to cool for 10 minutes.
Preheat oven to 350 degrees and prepare a baking sheet with parchment paper.
In a stand mixer with a paddle attachment, mix shortening, butter and sugar together.
Add vanilla extract and eggs. Mix until combined.
Add flour, cream or tartar, baking soda and salt. Mix on slow speed until just combined.
Place 1/2 cup of large granule sugar in a small bowl.
Using a medium (5cm) cookie scoop, scoop out a dough ball. Roll dough ball in large granule sugar and place on prepared baking sheet.
Bake for 12-14 minutes, or until the cookies begin to crack on top.
Remove from oven and add another sprinkle of the large granule sugar on top of each cookie.
Allow cookies to cool on baking sheet.