Allow the brown butter to stand for a few minutes until it reaches room temperature
Preheat oven to 160 degrees Celsius. Line a cookie sheet with parchment paper and set aside
Cream the butter and sugar until creamy
Mix in the vanilla essence
Add the flour, a little at a time until you have a firm but not crumbly dough
Add the pecan nuts and mix well
Divide the batter into 24 pieces. Roll them into neat balls
Place on a cookie sheet and bake at 160 degrees Celsius for 10-15 minutes until it slightly brown on the edges
The cookies will be very crumbly to the touch. Wait for a few minutes before transferring them to a cooling rack
Once completely cool roll them in icing sugar twice. The first time will be a little sticky but once it's tolled in the sugar again it will be perfect
Store in an airtight container