I loved these as a kid. Heat in a saucepan until boiling:
2 cups sugar
4 Tb cocoa
100 g (4 oz) dark chocolate
150 g butter (1 stick)
1/2 milk

Once boiling, turn off the heat and mix with:
1 cup peanut butter
1 Tb vanilla extract
2 cups oatmeal
2 cups shredded coconut

Spoon the mix onto wax paper and let cool. Store in the fridge or freeze for longer storage.