Preheat your oven to 425°F (220°C). Grease a baking sheet or line it with parchment paper.
In a large bowl, combine the Bisquick mix, granulated sugar, and baking powder. Mix well.
Add the milk, melted butter, and vanilla extract to the dry ingredients. Stir until just combined; do not overmix.
Drop the dough by large spoonfuls onto the prepared baking sheet, forming about 8 shortcakes.
Bake for 12-15 minutes or until the tops are golden brown. Remove from the oven and let cool slightly.
While the shortcakes are baking, prepare the strawberries. In a medium bowl, toss the sliced strawberries with 2 tablespoons of granulated sugar. Set aside to macerate for about 10-15 minutes.
In another bowl, whip the heavy cream, powdered sugar, and vanilla extract until soft peaks form.
To assemble, slice the shortcakes in half horizontally. Layer the bottom half with strawberries and a generous dollop of whipped cream. Top with the other half of the shortcake and add more strawberries and whipped cream on top.