Prepare the Nut Filling: In a bowl, combine the chopped nuts and ground cinnamon. Set aside.
- Prepare the Phyllo Dough: Preheat the oven to 350°F (175°C). Brush a 9×13-inch baking dish with melted butter. Lay one sheet of phyllo dough in the pan, brush with butter, and repeat with 8-10 layers.
- Add the Nut Filling: Sprinkle a layer of the nut mixture over the phyllo dough. Add another 6-8 layers of buttered phyllo dough on top of the nuts.
- Continue Layering: Add another layer of nuts, then repeat with 6-8 more layers of buttered phyllo dough. Continue this process until all the nuts are used, finishing with a final layer of phyllo dough.
- Cut the Baklava: Using a sharp knife, cut the baklava into squares or diamonds through all the layers of dough.
- Bake the Baklava: Bake for 45-50 minutes or until golden brown and crisp. Remove from oven.
- Make the Syrup: In a saucepan, combine sugar, water, honey, vanilla, and lemon juice. Boil, then simmer for 10 minutes.
- Pour the Syrup: Immediately pour the hot syrup over the hot baklava, ensuring it covers all the layers. Allow to cool completely and absorb the syrup.
- Serve: Cut along the pre-cut lines and serve. Enjoy with Turkish coffee or tea.