Our patisserie-style dessert layered with vanilla-poached mandarins is simple to make. Use these tips to help you. Step 1 For maximum vanilla flavour, use the point of the knife to scrape the seeds from the split vanilla bean and cooking video. Step 2 For flaky, crisp puff pastry squares that stay fairly flat, bake between two trays lined with baking paper. Step 3 To make sure the pastry squares brown evenly, turn the trays upside down during cooking.