Brownies with peanut butter swirl

140g bitter chocolade
3 eggs
130g sugar
pinch of salt
2,5g baking powder
170g flour
70g butter
4 full tb.s. peanut butter
70g butter
vanilla
powder sugar app. 70g
app. 30g flour

Melt chocolade with butter, vanilla, salt. Mix in flour and baking powder, then eggs.
Grease lined baking tray, pour the mixture in it, with a spoon create peanut butter stains on top and swirl them with a fork.
Bake at 160C for app. 30 minutes.