Place a large bowl onto mixing bowl lid and weigh cashews and 400 g of the water into it. Set aside to soak for 2 hours.
Drain cashews through simmering basket and setaside. Discard soaking water
Place lemon zest and juice into mixing bowl and grate 15 sec/speed 10.
Add remaining frosting ingredients, including soaked cashews and remaining 15 g water and blend 10 sec/speed 9.
Scrape down sides of mixing bowl with spatula and mix 10 sec/speed 9. Transfer into a sealable container and place into refrigerator. Clean and dry mixing bowl.
Preheat oven to 180°C. Grease and line a muffin tin with 12 paper cases and set aside.
Place a bowl onto mixing bowl lid and weigh almond milk into it. Add apple cider vinegar and chia seeds and set aside for 3 minutes to activate.
Place sugar into mixing bowl and mill 30 sec/speed 10. Transfer into a bowl and set aside.
Place coconut oil into mixing bowl and melt 50 sec/60°C/speed 2.
Insert butterfly whisk. Add coffee, vanilla and reserved almond milk mixture and mix 4 min/speed 4, until a foamy consistency is achieved. Remove butterfly whisk.
Add flour, cocoa powder, bicarbonate of soda, baking powder, salt and reserved sugar and mix 40 sec/speed 2, until smooth. Transfer sponge mixture into prepared muffin cases and bake for 25-30 minutes (180°C), or until a wooden skewer inserted into the centre of the cake comes out clean. Allow to cool completely (overnight is better). Clean and dry mixing bowl.
Place pistachios into mixing bowl and crush 10 sec/speed 4. Transfer into a bowl and set aside.
Create hole in cupcakes for filling. Gently spoon jam into hole & replace top. Pipe cashew frosting on top. Garnish with crushed pistachios and remaining fresh raspberries, then serve