Rinse the chicken breast fillets with cold water and pat dry. Cut the fillets into 2 cm pieces. Peel and dice the onions. Press the garlic.
Mix the ginger, flour, paprika, curry and cayenne pepper. Turn the chicken pieces in this seasoning mixture.
Heat 2 tablespoons of butter in a large pan and fry the meat for 5 minutes. Add onions and garlic after 3 minutes.
Add the mango chutney and deglaze with the vegetable stock or poultry stock. Let simmer for 10 minutes. Add crème fraîche and season with salt, pepper, sugar and lemon juice.