Crank oven to 350°F. Pulse nuts with cinnamon and sugar till crumbly.
Combine Nuts, Sugar, and Spices.
Unroll phyllo (keep it damp-toweled so it doesn't dry out). Butter the pan, layer 8-10 sheets, buttering each like a pro.
Drop a thin nut layer; repeat with 5 phyllo sheets, more nuts, till you're out, top with phyllo stack.
Slice into diamonds or squares (pretty and practical). Bake 45 mins till it's golden and smelling insane.
While it bakes, simmer the syrup stuff for 20 mins; let it cool a bit. Drench hot baklava with it right away—sizzle city!
Add Syrup While the Baklava Is Hot.
Let it sitat room temp 4+ hours (overnight's best—trust the process).