Prepare the syrup: In a small saucepan, combine the sugar, water, honey, lemon juice, and cinnamon stick (if using). Bring to a boil, then reduce the heat and let it simmer for about 10-15 minutes, until the syrup thickens slightly. Remove from heat and let it cool to room temperature while you prepare the Baklava.

1. Prepare the filo dough: Preheat the oven to 350°F (175°C). Brush a 9×13-inch baking dish with melted butter. Place one sheet of filo dough into the dish, then brush it with more melted butter. Repeat this process, layering about 8 sheets of filo dough, each brushed with butter.
2. Add the nut filling: In a medium bowl, combine the chopped nuts and ground cinnamon (if using). Sprinkle a thin, even layer of the nut mixture over the filo dough.
3. Layer more filo dough: Add another sheet of filo dough over the nuts, then brush with melted butter. Continue layering and buttering the filo dough, adding about 6-8 more sheets.
4. Repeat the nut and filo layers: Add another layer of the nut mixture and then continue layering with filo dough and butter. Repeat this process until you’ve used up all of the nuts, then finish with a final layer of about 8 sheets of filo dough.
5. Cut the Baklava: Before baking, use a sharp knife to cut the Baklava into diamond or square-shaped pieces. This will make it easier to serve once it’s baked.
6. Bake the Baklava: Bake the Baklava in the preheated oven for 45-50 minutes, or until the top is golden brown and crispy. Keep an eye on it to make sure it doesn’t burn, as filo dough can brown quickly.
7. Pour the syrup over the Baklava: When the Baklava is done, remove it from the oven and immediately pour the cooled syrup evenly over the hot pastry. Let the Baklava absorb the syrup as it cools. It will become sticky and sweet, and the syrup will soak into the layers.
8. Let it cool and serve: Allow the Baklava to cool completely before serving. The syrup will set as it cools, making the Baklava easier to cut and serve. Once cooled, serve the Baklava at room temperature and enjoy!