Place softened cream cheese, ½ cup softened butter, and flour in a large bowl. Mix with a hand mixer until a dough forms.
Divide the mixture into 24 one-inch balls. Place each ball into the well of a mini muffin tin (ungreased).
Press the mixture into the bottom and up the sides of each muffin cup.
For the filling:
Divide the pecans between the muffin cups (about ½ tablespoon per cup).
In a large bowl, whisk together the egg, brown sugar, 1 tablespoon melted butter, vanilla, and salt until smooth.
Pour the brown sugar mixture into a measuring cup with a pour spout, and divide evenly among the muffin cups.
Bake for 25 minutes, or until the filling is set. Let cool for 5 minutes, then carefully remove from the pans.
Serve plain, topped with a light dusting of powdered sugar, or topped with a dollop of whipped cream.
Notes
Use full-fat cream cheese for best results.You can substitute dark brown sugar for the light brown sugar for more molasses flavor.Use a dinner knife to remove the Pecan Tassies from the pan. If any of them get stuck, put them back in the oven for a few minutes to soften the filling, and try again. Store any leftovers at room temperature, in an airtight container. You can also freeze them for up to two months.