1-Getting Started with Mise en Place: First things first, preheat your oven to 350°F. Pull together all your ingredients like the graham crackers, cranberries, and white chocolate. If your cranberries are frozen, let them thaw a bit. Chopping the white chocolate evenly helps it melt smoothly, trust me on that.

2-Baking the Crust: Spray a 9-inch fluted tart pan with removable bottom to make things easy. Process the graham crackers with melted butter and sugar until you get fine crumbs. Press this mixture firmly into the pan and bake it on a sheet for 8 minutes until it’s lightly golden. Let it cool completely before moving on.

3-Making the Cranberry Filling: In a saucepan, mix the cranberries, sugar, cornstarch, and water. Bring it to a boil over medium heat, stirring often. Then simmer for 10 minutes until the berries break down. Take it off the heat and let it cool fully this step adds that tangy punch we love.

4-Creating the White Chocolate Ganache: Pop the chopped white chocolate into a bowl. Heat the cream and butter in a saucepan until the butter melts and bubbles form. Pour this over the chocolate and whisk until it’s silky smooth. This ganache is what gives the tart its creamy twist.

5-Assembling and Chilling: Spread the cranberry filling halfway up the cooled crust sides. Pour the ganache on top and level it off. Pop the tart in the fridge overnight to set. Just before serving, add some plain cranberries and rosemary sprigs for that fresh look.