Preheat the oven to 350℉ and place a piece of parchment paper on the bottom of a 9 inch springform pan.
In a stand mixer with the paddle attachment, beat the butter and sugar until fluffy.
Mix in the eggs, scraping the sides so the ingredients combine.
Add the brandy and vanilla and slowly mix in.
Add the flour and baking powder. Mix on the lowest setting until the flour is just mixed in with the wet ingredients.
Remove the bowl from the mixer and fold in the sour cream with a spatula.
Add the strawberries to the mixing bowl and gently stir.
Pour the batter into a prepared 9 inch springform pan.
Sprinkle the sugar evenly over the top of the batter.
Bake for 40 minutes or until a toothpick inserted in the middle comes out clean.
Allow to cool on a cooling rack for at least 30 minutes before removing the springform. Run a butter knife around the outside of the cake to remove any strawberries that are sticking to the pan.
Serve warm with fresh whipped cream or refrigerate within 2 hours.