In a large mixing bowl, whisk together eggs, buttermilk, melted butter, and vanilla.
In a second bowl, whisk together flour, brown sugar, baking powder, baking soda, and salt.
Fold dry ingredients into wet ingredients a little bit at a time until just combined.
Cook round 7" Belgian waffles according to waffle iron instructions.
Pecan Pie Filling Instructions
Mix all ingredients in a bowl. Easy!
Pecan Pie Assembly Instructions
Preheat oven to 400 F.
Place 4 of the waffles into 5" pie pans, pressing in the center of each waffle and letting the edges run up the pan like a pie crust. (You get to eat the fifth waffle while your pies are baking.)
Divide the filling evenly between the four pies (about 3/4 cup of filling per pie).
Cover the edges of the pies with foil or a pie guard to prevent burning.
Place pies onto a cookie sheet and bake for 10 minutes or until the filling is set on the edges of the pies but still a little jiggly in the centers.
Refrigerate before slicing if you want clean slices or just dig on in!