Preheat the Oven to 325°F (163°C). While the oven is preheating, Cut the 2 tablespoons butter into cubes and place them evenly on a baking sheet and put the baking sheet in the oven for the butter to melt. Take the baking sheet out of the oven and set it aside, as soon as the butter is melted to avoid burning. If you don't want to use the butter, then use a silicon mat lined baking sheet to make cleaning easy.
Separate the egg yolk and egg white of an egg and take the egg white in a medium size mixing bowl ( We DO NOT need the egg yolk in this recipe ). Add vanilla extract and whisk it until frothy.
Add sugar, salt and cinnamon to the the egg white mixture and mix it gently until well combined.
Now add the cashews and pecan halves to this mixture and mix well until all the nuts are properly coated with the egg white and sugar mixture.
Spread these cinnamon sugar coated cashews and pecans in a single flat layer on the sheet pan which is ready with the melted butter.
Bake for about 25 to 30 mins. Take them out and stir properly every 10 mins for the first 20 mins and watch very closely after 20 mins to check if they are done. They took about 28 mins in my oven but every oven is little different, So watch to see they don't burn in the last few mins.
Once candied cashews and pecans are done, take them out of the oven and allow them to cool completely. Nuts get crunchier as they cool down, so wait until they are completely cool to enjoy them. Leave them on the counter for couple hours and then store them in an air tight container at room temperature for around 2 to 4 weeks ( if they last that long🙂 )