Vanilla Butter Cake, Swiss Meringue Buttercream - ASMR

The vanilla butter cream cake recipe (all ingredients are at room temperature)
* The vanilla butter cake (16cm pan x 3 slices)
180ml milk
1 tbsp lemon juice / vinegar

270g cake flour
1 tsp baking powder
1/2 tsp baking soda
1/2 tsp salt

150g unsalted butter
30ml oil
130g sugar
Cream the butter, oil and sugar until pale and fluffy

3 eggs, add one by one
1 tbsp vanilla extract

divide the batter into 3 pans (buttered and floured), bake the cakes at 170C for 30 - 35 minutes

* The Swiss meringue buttercream
3 egg whites
140g powdered sugar
a pinch of salt (I forgot to show in the video)
300g room temperature butter
1 tbsp vanilla extract
a little purple color

Sugar syrup: 100ml water, 30g sugar, mix to dissolve
Sprinkles for decoration