Chef, Peter Sidwell, founder of Simply Good Food TV has created two delicious recipes using California Prunes - Moroccan Chicken Tagine with California Prunes and California Prune & Passion Fruit Tart with Prune Juice Caramel Custard. Follow the step by step instructions below to make these at home. C. Place the chicken, olive oil, dried mint and cumin into an oven proof dish and mix together. Add in the chopped onion and salt. Add in the tinned tomatoes, chicken stock and California Prune juice.