Cranberry Lemon Bars boast quite a tangy flavor since they are filled with fresh cranberries AND tart lemons! With its buttery shortbread crust, gooey layer of cranberry, and luscious topping of lemon custard, this is one delicious holiday dessert. NOTE: This is a time-intensive, more skill-based recipe. Those who are short on time or just starting out in the kitchen may prefer an easier alternative. Beginners can still make it, but it helps to be patient and follow each step closely.