Bring fat, 1/8 litre water and salt to the boil. Add the flour at once and stir until the dough comes off the bottom of the pot as a lump. Put the dough into a bowl. Stir in eggs bit by bit and add the baking powder.
Pour the dough into a piping bag with a star-shaped spout and squirt 10 medium-sized tuffs onto a baking tray lined with baking paper. Bake in a preheated oven (electric: 200°C/ gas: level 3) for 25-30 minutes.
Place the cream puffs on a cake rack and cut off one lid at a time with scissors and leave to cool. Soak gelatine in cold water. Wash and clean the strawberries and cut 250 g into narrow slices.
Puree the rest of the strawberries and mix with lemon juice and zest and 50 g icing sugar. Squeeze the gelatine, dissolve, stir into the puree and chill. Whip the cream until stiff and fold in the puree to become firm.
Chill the cream again briefly and fill into a piping bag with a star-shaped spout. Spray onto the cream puff bases. Put strawberry wedges into the strawberry cream. Put the lid on the cream puffs and refrigerate for about 1/2 hour.
Dust with the remaining icing sugar and serve. Results in about 10 pieces.