Separate the eggs and beat the egg whites until stiff. Mix the butter, sugar and egg yolks together until frothy. Add the cornstarch, lemon juice, grated lemon zest and quark and stir well. Then fold in the cooled rice and carefully fold in the egg whites.
Grease a baking dish and pour the mixture into it. Sprinkle with the breadcrumbs and the butter flakes and bake at approx. 200 degrees for about 60 minutes.
We love to eat pear compote with it.
Tip:
You can also use chopped noodles instead of risotto rice.