Toast the nuts (optional but recommended):Lightly toast the pine nuts or walnuts in a dry pan over medium heat until golden and fragrant. Allow to cool.
Blend the base ingredients:In a food processor or blender, combine the basil, toasted nuts, garlic, and grated Sharpham Rushmore cheese. Blitz briefly to break everything down.
Add lemon and oil:Add the lemon juice and begin streaming in the olive oil while blending until the mixture reaches your desired consistency — thick and spoonable, but not too smooth.
Season to taste:Add salt and black pepper to your preference. Remember, Sharpham Rushmore has a salty, tangy profile, so taste before adding too much salt.
Store or serve:Use immediately, or transfer to a clean jar and top with a thin layer of olive oil to preserve freshness. Store in the fridge for up to 5 days.