2Add six sheets of graham crackers (or 90 grams of Biscoff/Speculoos cookies), half a cup of sweetened shredded coconut, and a quarter cup of packed light brown sugar to a food processor.
3Process until you have nice, fine crumbs.
4With the mixer running, add a quarter cup (57 grams) of melted butter.
5Carefully remove the blade from the food processor and stir the mixture with a spoon to ensure even butter distribution.
6Transfer the crumb mixture into a pie dish.
7Use your fingers to roughly shape the crust, then use a glass or measuring cup to press down and compact the crust, angling the glass at the edge to keep the top in line.
8Bake the crust at 350 degrees Fahrenheit for about 10 minutes, or until fragrant.
9While the crust bakes, slice key limes in half and juice them to yield half a cup of key lime juice, using a strainer and your fingers if a juicer is not suitable for key limes.
10In a large bowl, add two eggs, one 14-ounce can of sweetened condensed milk, half a teaspoon of vanilla, and a pinch (eighth of a teaspoon) of salt.
11Whisk the ingredients together until nice and homogenous.
12Pour the key lime juice into the filling mixture and whisk; notice how it immediately begins to thicken due to the chemical reaction.
13Add a tenth of a drop of green food coloring using a toothpick if you desire a green tint, as key lime pies are naturally yellow.
14Pour the filling into the baked crust.
15Bake the pie at 350 degrees Fahrenheit for 10 to 15 minutes, or until the center is just a bit jiggly and the edges are set.
16Let the pie cool for 30 minutes on the countertop, then refrigerate for at least four hours to set perfectly.
17Once the pie is chilled, prepare the whipped cream by combining one and a half cups of cold heavy cream and about a quarter cup of powdered sugar in a bowl.
18Whip on low, then medium, then high speed until it reaches a beautiful, soft, smooth peak stage, stopping the mixer before it's done and finishing by hand for control.
19Using a triggered ice cream scoop, place scoops of whipped cream on top of the pie to create a mountain.