In a mixing bowl, combine the chopped walnuts, chopped almonds, ground cinnamon, and vanilla extract. Set this mixture aside.
Take a deep baking dish and lightly grease it with some of the melted butter.
Carefully unfold the phyllo dough and cover it with a damp towel to prevent it from drying out. Place one sheet of phyllo dough in the dish and brush it with melted butter.
Repeat this process, layering about 6 to 8 sheets of phyllo dough and buttering each layer.
After the phyllo base is layered, evenly spread half the nut mixture over the phyllo.
Continue adding more layers of phyllo dough, about 3 to 4 sheets at a time, brushing each with melted butter until you have another layer of around 6 to 8 sheets.
Add the remaining nut mixture followed by more phyllo layers, using the same technique until all your phyllo and nuts are used up. Finish with a generous topping of phyllo layers, about 6 sheets, using melted butter as you go.
Cut the pie into diamond or square shapes before placing it in the oven. Bake for approximately 35-40 minutes, or until the top is golden brown and crispy.
While the pie is baking, make the syrup: In a saucepan, combine honey, sugar, water, and lemon juice. Bring it to a gentle boil, then simmer for about 10 minutes until slightly thickened. Let it cool.
Once the pie is baked, immediately pour the cooled honey syrup over it, allowing it to soak in.
Allow the pie to sit for at least 30 minutes before serving to let the syrup penetrate fully.
Notes
Serve on a decorative plate, garnished with whole nuts and a dusting of cinnamon.