First wash the groundnuts, line the oven with baking paper

Then arrange the dried groundnuts on the baking rack and put them in the oven.

Turn off the oven and select upper and lower heat at 230 degrees for 20 minutes.

After 20 minutes, take out and give the groundnuts a flip, put them back in the oven and continue baking for another 20 minutes.

And it's done