Pecan Pie Filling:
- 2 Tbsp. cornstarch
- 2/3 cup water
- 1 large egg yolk
- 3/4 cup chopped pecans
- 1/2 cup lt. brown sugar packed
- 1 1/2 Tbsp. unsalted butter
- 1/2 tsp. vanilla
Brown Sugar Swiss
Meringue Buttercream:
- 5 large egg whites
- 1 2/3 cups dark brown sugar
- 2 cups unsalted butter room temperature
- 2 tsp. vanilla