Wash potatoes and cook covered in water for about 20 minutes
Peel onions and garlic. Drain the tomatoes and pat dry if necessary. Dice everything finely. Coarsely chop pine nuts
Heat 1 tablespoon of oil. Sauté onions and garlic in it. Add pine nuts and fry until golden brown. Stir in tomatoes
Quench the potatoes, peel them and press them hot through the potato press. Stir in semolina, season. Let cool down a little. Then knead in starch, egg yolk and half the tomato mixture. Let it cool down
Form potato dough on some flour to 2 rolls (approx. 4 cm Ø). Cut the rolls into pieces about 2 cm thick and form them into oval gnocchi. Cook the gnocchi in portions in plenty of boiling salted water for 3-4 minutes until they float on top
Drain the gnocchi. Swivel in 1-2 tablespoons of hot oil, remove. Stir crème fraîche and milk into the pan and heat. Season to taste with salt and pepper. Wash and finely chop the basil and stir in. Serve with the rest of the tomato mixture. Goes well with leaf spinach