Place walnuts onto a lined tray and place into a cold oven set to 200°C. Toast 10 minutes, remove from oven and cool.
Place 30g of the walnuts into TM bowl with lemon juice, maple syrup, EVOO and mustard. Blend 10 sec/speed 10.
Place 1/3 of the cut kale into the TM bowl and chop 3-4 sec/speed 5. Remove from bowl into a large serving bowl and repeat until all the kale is chopped.
Add sliced apples and toss so that they are coated well with the dressing (to prevent discoloration).
Fry the prosciutto in a medium hot pan until crispy. Cool before crumbling over the top of the salad.
Garnish with remaining toasted walnuts.