For the Crust:

5 tablespoons unsalted butter, melted
1 1/2 cups graham cracker crumbs
1 tablespoon granulated sugar
Pinch of salt

For the Filling:

2 medium hass avocados
1 8-ounce package cream cheese, at room temperature
1 14-ounce can sweetened condensed milk
2 1/2 tablespoons fresh lime juice
1 1/2 tablespoons fresh lemon juice
Pinch of salt
Whipped cream or confectioners' sugar, for garnish (optional)