01 - Preheat oven to 340°F. Grease a 9x13-inch baking dish with a small amount of melted butter.
02 - Combine walnuts, pistachios, almonds, cinnamon, cloves, and sugar in a mixing bowl. Stir until evenly blended.
03 - Unroll phyllo sheets and cover immediately with a lightly damp towel to prevent drying during assembly.
04 - Place one phyllo sheet in the prepared dish and brush lightly with melted butter. Repeat with 7 more sheets, buttering each layer (8 total sheets).
05 - Sprinkle one-third of the nut mixture evenly across the phyllo base.
06 - Layer 4 phyllo sheets, brushing each with butter. Top with another one-third of the nut mixture.
07 - Add 4 more phyllo sheets, buttering each. Spread remaining nut mixture evenly on top.
08 - Layer final 4 phyllo sheets, brushing each with butter. Generously butter the top surface completely.
09 - Using a sharp knife, slice the assembled baklava into diamond or square shapes before baking.
10 - Bake for 45 to 50 minutes until layers are golden brown and crisp.
11 - While baklava bakes, combine sugar, water, honey, cinnamon stick, and lemon peel in a saucepan. Bring to boil, then simmer 10 minutes. Remove from heat and let cool slightly. Discard cinnamon stick and lemon peel.
12 - Immediately pour warm syrup evenly over hot baklava when it comes out of the oven. Cool completely before serving.