Grease a ring cake tin (approx. 2.4 l capacity) and dust with flour. Preheat the oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer).
For the dough, roughly chop the peanut bars. Cream 250 g butter, 250 g sugar and 1 pinch of salt with the whisks of the mixer. Stir in first eggs one after the other, then milk. Mix 500 g flour and baking powder.
Alternately stir peanut butter into the egg-sugar mixture. Fold in chopped nut bars.
Smooth the dough in the form. Bake in the hot oven for about 1 hour. Take out, let cool in the form for about 10 minutes. Turn out and let cool down.
For the icing, caramelise 150 g sugar in a pan until light brown and stir in 30 g butter. Carefully pour the caramel onto the cake with a tablespoon. Attention! The icing is very hot and will set very quickly.
It is therefore best to cut cooled gugel into pieces with a saw knife.