- Preheat oven to 325ºF and place raw cashews on a medium-sized baking sheet. Spread evenly in one layer and toast for 10-15 minutes. Let cashews cool on pan for 10 minutes. Place slightly cooled cashews in bowl of food processor and cover with lid. Process for about 10 minutes, then add 2 tsp of coconut oil and process the cashew butter for another 5 minutes. Transfer cashew butter into jar with lid and store in fridge.