1In medium bowl, stir together Bisquick mix, milk and eggs with whisk just until blended.
2Heat griddle or skillet over medium-high heat (375°F). Brush with vegetable oil if necessary (or spray with cooking spray before heating). For each pancake, pour slightly less than 1/2 cup batter onto hot griddle. Cook about 3 minutes or until edges are dry and bubbles form on top. Turn; cook other side until golden brown. Place pancakes on cookie sheet to cool.
3Meanwhile, pour cream into medium bowl; add sugar and vanilla. Refrigerate 10 minutes. Beat cream mixture with electric mixer on high speed until stiff peaks form.
4Spoon dollop of frosting in center of serving plate; top with 1 pancake. Spread 1 to 2 tablespoons frosting on pancake; drizzle with chocolate syrup. Repeat layers with remaining pancakes. Spread remaining frosting on top pancake. Decorate with sprinkles.