Heat oven to 400. Spray a 9" glass pie pan w/ cooking spray. In bowl, mix brown sugar and cinnamon. Add apple slices, toss to coat.
In lg saucepan, heat water and butter to a boil. Reduce heat to low. Add Bisquick mix and stir until mix forms a ball. Remove from heat.
Beat in eggs, one at a time. Beat until smooth. Spread batter into bottom of pan. Arrange apples on top of batter w/in 1" of the edge. bake 23 min or until puffed and edges are golden brown. Drizzle w/ syrup.