Butter the surface of a baking pan or glass dish. Alternatively line with baking paper. I used a 30x25 cm glass dish. Set aside.

In a large mixing bowl sift milk powder and cocoa. Add nuts and mix well.

In a medium pot add the water, sugar, butter and lemon juice. Melt the butter and ensure all the sugar is resolved. Bring to boil and take off the heat.

Add the vanilla and rum to the syrup and mix.

Be careful with the hot sugar syrup not to burn!

Pour syrup over the dry ingredients and stir well.

Work fast, the mixture set quickly!

Pour into the pan and decorate with nuts, chocolate and silver drops.

Alternatively: can decorate with dried fruit, chopped chocolate, there is a lot of options, or enjoy as is!

Let pan cool, cover and refrigerate overnight.

Cut into blocks and enjoy!