Preheat your oven to 400°F/200°C. Line a baking sheet with parchment paper.
Pour the pecans into a dry frying pan and toast over medium heat until fragrant. Keep an eye on the nuts so they don't burn. Let them cool while you make the dough.
Grab a large bowl and add the softened butter, sugar, and vanilla.
Beat everything together with a wooden spoon until smooth.
Pour the flour into the butter mixture and mix with a spoon until combined, the mix in the pecans.
Scoop and roll the dough into 1-inch balls and place them on your prepared cookie sheet. I use a spoon or you can use a small cookie scoop. Space them about 1 inch apart.
Bake the balls for 10-12 minutes. Remove them from the oven.
Let them cool for 3-4 minutes before rolling them in ¼ cup of confectioners sugar. Transfer them to a wire rack to cool. Once the balls have cooled completely, roll them for a second time in the sugar and serve.