Combine the graham cracker crumbs, salt, brown sugar and melted butter.
Press into a 9x13-inch baking dish. Chill in the fridge while you prepare the filling.
In a large bowl, beat the cream cheese until smooth with a hand-held mixer (you can also use a stand mixer with a paddle attachment). Add the sweetened condensed milk, lime juice, and lime zest and mix until smooth.
In a separate bowl, beat the heavy whipping cream to stiff peaks. Gently fold into the cream cheese mixture in 2 additions, mixing until just combined. Spread evenly on top of the graham cracker crust.
Chill in the fridge for 4 hours, or you can make it ahead and chill overnight.
Top with sweetened whipped cream and lime slices. Slice and serve.
- To make graham cracker crumbs, crush graham crackers in a large ziplock bag with a rolling pin, or pulse in a food processor.
- For clean slices, run a sharp knife under hot water and dry between each slice.
Calories: 369kcal, Carbohydrates: 35g, Protein: 5g, Fat: 24g, Saturated Fat: 14g, Trans Fat: 1g, Cholesterol: 74mg, Sodium: 205mg, Potassium: 208mg, Fiber: 1g, Sugar: 26g, Vitamin A: 814IU, Vitamin C: 4mg, Calcium: 143mg, Iron: 1mg