Combine half the sugar and the cinnamon in a large bowl. Cut biscuits into fourths and add to sugar mixture; toss to coat. Set aside. Melt butter in medium pan over medium heat. Add brown sugar and remaining sugar, stirring until sugar dissolves.
Remove from heat and stir in vanilla and pecans. Arrange 5 coated biscuit pieces in a lightly greased foil muffin cup; place in a muffin pan. Repeat with remaining biscuit pieces. Drizzle evenly with pecan mixture. Bake at 400 for 18 minutes or until golden.
The recipe is written in a confusing way that made it hard to decipher when what ingredient was added. I never saw where the two separate portions of butter were added, and when I poured the glaze on the dough the first one received all butter and little to no sugar glaze. Perhaps the smaller portion was to add with the sugars but who could tell?! A bit of clarifying could go a long way with this one. However, an absolutely heavenly smell filled my kitched while these were baking and the overall taste was DELICIOUS.
CDKitchen Note: The amount of butter isn't a divided use, it's 1/2 cup plus additional (to all be melted together)