For tipsy nut slices, first prepare the dough: To do this, combine all ingredients in a bowl and knead together with the dough hooks of a hand mixer until smooth. Shape into a ball, flatten and chill covered for about an hour.
Preheat the oven to 170 °C (convection oven 150 °C), grease a baking tray or line with baking paper.
Roll out the chilled dough in portions on a floured work surface to a thickness of approx. 4 mm. Using a sharp knife, cut into slices about 2 cm wide and place them on the prepared baking sheet.
Bake the slices on the middle rack for 10-12 minutes.
In the meantime, for the glaze, mix confectioners’ sugar with rum. Stir the jam until smooth. Brush the still warm slices first with jam and then coat thickly with rum glaze.
Allow tipsy nut slices to dry completely.