Preheat the oven (electric cooker: 175 °C/ circulating air: 150 °C/ gas: stage 2). Mix flour, eggs and milk until smooth, season with salt and pepper. Let the dough swell for about 10 minutes. Line the fat pan of the oven (32 x 39 cm) with baking paper and heat up in the oven for approx. 5 minutes. Stir mineral water into the dough.
Coat baking paper with oil. Pour the dough onto the baking paper on the hot baking cup. Bake in the oven for 12-15 minutes on the lower shelf until golden brown. Wash the chives, dab dry and cut into small rolls. Take the pancakes out of the oven and let them cool down a little. Spread with horseradish and 150 g crème fraîche. Sprinkle with chives. Spread salmon on top and roll up the pancakes tightly from the long side, cut into thick slices and arrange on a plate. Put a dash of crème fraiche on top.
Spread with horseradish and 150 g crème fraîche. Sprinkle with chives. Spread salmon on top and roll up the pancakes tightly from the long side, cut into thick slices and arrange on a plate. Put a dash of crème fraiche on top. Serve the rest of the crème fraîche extra. Serve with a green salad with tomatoes