Classic Vanilla Layer Cake with Vanilla Mascarpone Frosting & Raspberries

INGREDIENTS

2 pints

Raspberries

Egg whites, large

All-purpose flour

1 1/3 tbsp

Baking powder

12 oz

Cake flour

2 1/3 cups

Granulated sugar

Scraped from 1 vanilla bean, Seeds

3/4 tsp

Table salt

1 pinch

Table salt

1/2 lb

Butter, unsalted

2 cups

Heavy cream

1 lb

Mascarpone cheese

1 cup

Whole milk

Seeds scraped from 3/4 vanilla bean, or 2 tsp. pure vanilla extract