Add all the ingredients of the crumble to a food-processor and process until the mixture resembles breadcrumbs.
Spread the mixture on a tray and bake in the oven for 30 minutes. Then leave to cool.
Meanwhile, make the apple filling. Peel and core the apples, before finely chopping them. Stir through the lemon juice to prevent them from turning brown.
Add the apple pieces to a pan and cook on a medium heat for about 5 minutes. Add a tbsp of honey and season with white pepper and nutmeg.
In a separate bowl, mix the cornstarch with the warm water. Make sure there are no lumps.
Add the cornstarch mixture to the apples and cook on a low heat for another 2 minutes. The remove from the heat and leave to cool.
When you’re ready to start assembling your dessert, mix the sour cream with 1 tsp of honey.
Start by layering 1 tbsp crumble, 1 tbsp apple filling and 1 tsp of sour cream in each glass. Repeat until all the ingredients have been divided. Remember to leave a little bit of crumble as decoration for the final layer.
Serve the desserts at room temperature. They’re best assembled shortly before serving.