More detailed directions (with pictures)
Separate the egg whites from the yolk. Mix the dry ingredients (flour and baking powder) by passing them through a sieve couple of times.

Dissolve the coconut sugar and stevia in milk.

Add vanilla extract to milk.

Sift the flour and baking powder couple of times.

Pour the milk mix in with the flour.

Add melted butter to the mix.

Add egg yolk to the mix.

Mix the ingredients well with a hand mixer. The mix will be little dry initially, but it will reach the correct consistency once we mix egg whites.

Take the egg whites in the bowl and use a whisk/mixer to get stiff peaks. You may use a hand mixer to beat the eggs. it takes around 15-20 seconds with a mixer or 2-3 minutes with a whisk.

Add these to the cake mix.

Use spatula to mix the egg whites with the cake mix, else use a mixer.

Pour the cake mix in buttered and floured cake pans. Place in the pre-heated oven and bake for 30 to 35 minutes or until toothpick comes out.
Alternatively you may use a water bath to bake the cake, it will take around 50-55 minutes or until toothpick comes. A water bath adds moisture to the oven and provides a slow, even, heat.

Allow the cake to cool on the rack for 30 minutes.

If you want to make the whipped cream at home, then you need to take chilled, yes very chilled heavy cream

Beat continuously making bigger loops, so that more air gets in and you can get stiff peaks, it takes around 2-3 minutes, else you may use a mixer to beat the cream

Cut the cake in 2 slices and place the strawberry slices with cream on top. If you want to evenly spread the cream, you may use an icing cone.

Place the other cake piece on top of the cream and again top with whipped cream and strawberry pieces.

