Key Lime Pie

For the Crust:

1½ cups finely crushed graham cracker crumbs (from about 12 whole graham crackers)

⅓ cup packed  light brown sugar

4 tablespoons (1/4 cup) unsalted butter, melted

For the Filling:

Two 14-ounce cans sweetened condensed milk

1 cup plain Greek yogurt (2% or whole milk)

1 tablespoon grated lime zest

¾ cup fresh lime juice

For the Topping:

1 cup cold heavy cream

2 tablespoons confectioners’ sugar

1 teaspoon grated lime zest

8 to 10 thin lime slices (for decoration)