Mix graham cracker crumbs, melted butter, and granulated sugar in a bowl until it resembles wet sand. Press this mixture firmly into the bottom of a 9-inch springform pan, working it up the sides just slightly. Use the bottom of a measuring cup to pack it down tight so it holds together. Chill the crust for 15 minutes while you prep the filling. This step keeps everything from falling apart when you add the creamy layer on top.
Beat softened cream cheese with powdered sugar using an electric mixer on medium speed for about 2 minutes. Scrape down the bowl halfway through to catch any lumps hiding on the sides. The mixture should look pale and fluffy, not dense. Add vanilla powder and salt, then mix for another 30 seconds. Don't overmix here or you'll incorporate too much air and get a grainy texture.
Fold in the whipped topping gently using a spatula—this is where you'll hear the mixture get thicker and creamier as you fold. Work slowly and don't rush this step because you're creating that cloud-like texture. Some people use a mixer for this, but folding by hand keeps everything lighter and more delicate. The filling should look silky and smooth at this point.
Stir in fresh lemon juice and lemon zest until everything is evenly combined. The juice brightens the whole dessert and cuts through the richness of the cream cheese beautifully. Drizzle in the honey and fold gently one more time. Taste a tiny spoonful and adjust sweetness if you need to—this is your moment to customize it.
Pour the filling onto your chilled crust and smooth the top with a spatula. Work gently so you don't disturb the crust layer underneath. Spread it evenly, making sure you get into the corners of the pan. The filling should be about 1½ inches thick when spread out. This thickness gives you that perfect ratio of crust to creamy filling.
Sprinkle toasted coconut flakes evenly over the top, pressing them gently so they stick. Your kitchen will smell like warm coconut and buttery cream cheese—that's your signal everything's going right. Refrigerate for at least 4 hours, though overnight is even better. The longer it chills, the firmer and sliceable it becomes. I usually make mine the night before so it's perfect by dinner time.
Run a thin knife around the edges before unclasping the springform pan to prevent cracking. Slice with a hot, wet knife—dip it in warm water and wipe it between each cut. This keeps the slices clean and prevents the filling from dragging. Serve cold straight from the fridge for the best texture and flavor.