Defrost the raspberries if necessary. Preheat the oven (electric cooker: 180 °C/circulating air: 160 °C/gas: see manufacturer). If necessary, grease the ring cake tin with butter and dust lightly with flour.
Tap off the excess flour.
Put all ingredients, except the raspberries, in the baking tin or alternatively in a bowl with a tightly closing lid. Close the mould well and shake well for about 10 seconds so that everything mixes together.
Leave the dough in one of the baking tins (see tip below) or fill it into the ring cake tin. Carefully fold in the raspberries. Clean the edge of the mould with a kitchen roll.
Bake in the hot oven on the rack on the middle shelf for about 55 minutes in the baking tin (40-45 minutes in the ring cake tin). Remove from the oven, let it cool down a little, turn it onto a rack and let it cool down completely.
Dust with icing sugar.