Whisk eggs in a small mixing bowl. Add the butter.
Mix the coconut four, Lakanto, cinnamon and salt in a second bow. Add to eggs, mix until dough forms.
Roll the dough into a ball and press into a greased 8 or 9-inch pie pan. Prick the dough multiple times with a fork.
Bake for 12-15 minutes, until lightly brown. Add the filling and chill or serve warm.
Filling
Simmer apples and butter in a small saucepan over low heat for 5 minutes.
Add all the remaining ingredients except the walnuts and brandy. Simmer for 5 more minutes while you chop the nuts in a food processor or by hand. Pulse them to a fine crumble and add to the saucepan while it finishes simmering.
Remove from heat, add brandy. Cool and fill the crust. Spread flat with the back of a spoon.