Line a 13 x 18 inch rimmed baking sheet with parchment paper and preheat the oven to 400 degrees F.
Combine the flour, sugar, baking powder, and salt in a large bowl.
Cut the butter into pieces, then use a pastry cutter or two forks to cut the butter into the flour until it resembles small peas.
Lightly beat the eggs, then add them to the flour mixture, along with the heavy cream and vanilla.
Stir until combined.
Turn out the dough onto the lined baking sheet. Use greased hands or a spatula to press the dough into the pan.
Bake for 20-24 minutes.
Allow to cool for 10-15 minutes, then turn out onto a wire rack,
Prepare the whipped cream by beating the cream and maple syrup until stiff peaks form.
Stir together the strawberries, sugar, and lemon juice and let sit for a few minutes.
Spread the whipped cream on the cake once it has cooled completely.
Top with the strawberries.