1 cup (2 sticks) butter , room temperature, plus more for greasing Flour, for dusting pan 2 cups sugar 6 large eggs, room temperature 1 teaspoon vanilla extract One 12-ounce box vanilla wafers, finely crushed One 6-ounce package frozen or fresh grated coconut, thawed 1/2 cup chopped pecans For the Coconut Lemon Glaze: 2 cups sugar 2 tablespoons cornstarch Pinch of salt Grated zest of 2 large lemons 1/4 cup fresh lemon juice (about 2 large lemons) One 6-ounce package frozen or fresh grated coconut, thawed