Add in the eggs, one at a time, mixing well in between. Then mix in the vanilla and sour cream. The mixture might appear curdled but that's ok.
4 large eggs, 1/2 cup sour cream, 2 tsp vanilla extract
Stir in the flour mixture in two equal parts, mixing until just combined. Divide the batter equally into the prepared cake pans.
Bake for 20-25 minutes or until the edges start to pull away from the pan and a toothpick inserted into the center comes out clean. Let cool completely.
Toss the sliced strawberries with the sugar, cover, and place in the fridge for 15-30 minutes.
Beat the heavy cream, powdered sugar, and vanilla until med-stiff peaks.
1 pint (473ml) heavy cream, 2/3 cup (80g) powdered sugar, 1 tsp vanilla extract
Place one cake on a serving plate. Spread 1/4 of the whipped cream on top, spoon the macerated strawberries on top of the cream, then spread another 1/4 whipped cream on top of the strawberries.
Layer the other cake on top, spread the remaining whipped cream, and decorate with fresh strawberries.
1 - 2 cups fresh strawberries to decorate
Notes
Leftover cake can be covered and stored in the fridge for up to 3 days.