unthaw 1 sheet puff pastry according to package instructions
on a lightly floured surface, flatten just a little with a roller
soften 3 tbsp butter and brush over pastry
sprinkle 1/4 cup brown sugar + 2 tsp cinnamon on top
using a pizza cutter, cut into 12 equal strips and roll into the shape of a cinnamon roll
place into an oiled muffin pan
400F for 22-24 min
icing: 1 cup powdered sugar + 1 tbsp milk