Cinnamon French Toast Bubble Up

Preheat oven to 350 degrees. Prep a baking pan with nonstick baking spray.
Cut each biscuit in fourth. Set aside. Whisk together the sugar and cinnamon.
Pour the sugar and cinnamon into a ziploc bag.
French Toast:
Cut the buttermilk biscuits into fourths. Add the cut biscuits in the ziploc bag.
Shake to toss the cut biscuits in the sugar/cinnamon mixture.
Place the cut biscuits in the prepared baking dish.Whisk the skim milk, vanilla, and eggs together in a bowl.
Pour this over the quartered biscuits in the baking dish.
Bake at 350 degrees for 35 minutes.
Glaze:
Add the vanilla, powdered sugar, and milk in a bowl.
With an electric mixer, beat the ingredients together.
Before serving the french toast pour the glaze on top.