Beat the room temperature butter for 6–8 minutes until fluffy, add the sugar and salt, beat until everything has dissolved. Then incorporate the eggs one at a time. Mix the flour with the baking powder, cinnamon, grated walnuts and orange zest, and stir in quickly. Add a tablespoon or two of milk if necessary if the dough is too firm.
For the dough:
gButter
gSugar
pkg.Vanilla sugar
Salt
Eggs
gFlour
tsp.Baking powder
tsp.Cinnamon
gGrated walnuts
Grated zest of half an organic orange
tsp.Milk
Grated zest of half an organic orange
Step 2
Grease the springform pan thoroughly, sprinkle with breadcrumbs or walnut flour and pour in the dough.
Cut the apples into eighths and spread on the dough, sprinkle with cinnamon sugar and bake at 180°C for 40 minutes. Meanwhile, beat 3 egg whites with a few drops of lemon juice until stiff and gradually add the sugar. Beat until it has dissolved. Fill a piping bag with the mixture.
Some breadcrumbs or walnut flour for the springform pan
gSour apples (e.g. Boskoop, Holsteiner Cox)
tbsp.Cinnamon sugar
For the meringue:
Egg whites
A little juice of a lemon
gVery fine sugar
Step 3
Remove the cake from the oven, top with the beaten egg whites and bake for 15–20 minutes until done – test with a skewer! Caramelize the nuts and seeds with sugar in a non-stick frying pan and spread out on baking paper. Once cooled, roughly chop and distribute over the baked cake.
For the crunch:
gMixed nuts and seeds, such as walnuts, pecans, pistachios, pumpkin seeds and sunflower seeds