Whisk together:  

2 1/2 cups all purpose flour

1/4 cup brown sugar

1 tablespoon baking powder

1 1/2 tablespoons ground cinnamon

Then add:

2 cups heavy whipping cream

1 teaspoon vanilla 

Mix well until it forms a sticky dough. Set aside. 

 Melt 1 stick (1/2 cup) butter and place in an 8x8 baking dish or pan. Plop the stick dough mixture into the buttered dish and spread out evenly. You may use a knife to score through the dough to cut into squares ahead of time to help with serving after baking if you'd like. 

Bake for 25 minutes or until a toothpick comes out clean after inserting into the center of the biscuits.

When done, remove biscuits from the oven and prepare the icing while biscuits are cooling.

In a medium bowl, mix:

1 1/2 cups powdered sugar

3 tablespoons melted butter

1 teaspoon vanilla

2 tablespoons heavy cream

If too thick, add more heavy cream or butter to thin to your liking.

Cut biscuits into serving size pieces and top with icing. Serve warm.