Pink Vanilla & Sprinkles Cake

INGREDIENTS

1 1/2 cups

(341 g)(3 sticks) unsalted butter, at room temperature

2 2/3 cups

granulated sugar

egg whites, at room temperature

4 1/2 cups

all-purpose flour

2 tbsp

baking powder

1 tsp

salt

2 cups

buttermilk, at room temperature

vanilla bean, split & scraped or 1 tablespoon (15 mL) vanilla bean paste

1 tsp

pure vanilla extract, best quality

large (150 g) egg whites

1 1/4 cups

granulated sugar

1/2 cup

plus 2 tablespoons (213 g) light corn syrup

2 cups

(4 sticks) unsalted butter, at room temperature

1 tbsp

pure vanilla extract

salt

drops pink gel food colour