Preheat the oven to 350°F (177°C).
Prepare the crust: Use a food processor to pulse graham crackers and almonds into crumbs. Transfer to a medium bowl, add sugar, and stir. Incorporate melted butter and stir until the mixture is thick, coarse, and sandy. Pour into an ungreased 9-inch pie dish. Gently pat the crumbs into the bottom and up the sides to form a compact crust. Avoid packing down too hard. Optionally, use a small flat-bottomed measuring cup to assist in pressing down the crust. Pre-bake for 8 minutes.
Make the filling: Whisk together sweetened condensed milk, lemon juice, and egg yolks. Pour into the warm crust.
Bake the pie for 19–21 minutes or until it is only slightly jiggly in the center, aiming for a mostly set consistency. Remove from the oven and let it cool completely on a wire rack.
Once cooled, cover and chill for at least 1 hour (up to 3 days) before serving.
Garnish the pie as desired.
Store any leftovers in the refrigerator for up to 1 week.