Berry Chantilly Cake

INGREDIENTS

cooking spray

1 cup

unsalted butter (at room temperature)

2 cups

granulated sugar

large eggs

large egg yolks

1 tsp

kosher salt

3 tsp

baking powder

3 cups

Bob's Red Mill Organic Unbleached All Purpose White Flour

2 cups

buttermilk

1 1/2 tsp

vanilla extract

1/4 cup

raspberry jam

2 tbsp

water

1 cup

heavy cream

8 oz

mascarpone cheese (at room temperature)

8 oz

cream cheese ( at room temperature)

2 1/2 cups

powdered sugar (sifted)

1 tsp

vanilla extract

1/4 cup

butter (at room temperature)

2 cups

mixed berries (plus more for garnish)

Optional garnish: Mint sprigs