for 6 people
250g puff pastry
10 Knackwurst sausages
2 whole eggs
150g grated Gruyere cheese
25cl light fresh cream
1 tablespoon mustard
1 Roll out the puff pastry. Line a floured tart pan with the pastry. Prick it with a fork. Brush it with mustard.
2 Cut the Knackwurst sausages into small rounds. Arrange them on the bottom of the pastry. Sprinkle 75g grated Gruyere cheese on top.
3 In a bowl, mix together the eggs, light fresh cream, milk, and pepper.
4 Pour the mixture over the pastry and sausage. Sprinkle the other 75g of grated Gruyere cheese on top.
5 Bake in a medium oven for about 35 minutes.
Finally, serve the tart hot or warm.