Preheat the oven to 200 degrees celcius (392 °F). Butter and line a 25 cm size pan.
Mix the eggs and the sugar. Add the melted butter. Mix all the dry ingredients and add them into the dough. Pour the dough into the pan and even out the surface. Add the peanut butter on the pie using two spoons and make patterns with a knife.
Bake in the middle of the oven for 20-25 min. The pie should be really moist in the center so don’t bake too long.