Banana Meringue Cake with Cinnamon-Sour Cream Ganache

INGREDIENTS

12 3/4 oz

all-purpose flour (3 cups)

1 tsp

baking soda

1 tsp

baking powder

3/4 tsp

salt

1 tsp

ground cinnamon

6 oz

unsalted butter (at room temperature)

15 3/4 oz

granulated sugar (2.25 cups)

eggs (at room temperature)

9 oz

sour cream (1 cup + 2 tbsp, at room temperature)

2 cups

mashed bananas (from about 5 large bananas)

3 tbsp

fresh lemon juice

1 tsp

vanilla extract

1 87/100

lbs white chocolate (finely chopped (about 5 cups))

1 1/2

lbs sour cream (3 cups)

2 tsp

vanilla extract

1/4 tsp

salt

2 tsp

ground cinnamon

egg whites

9 3/10 oz

granulated sugar (1.3 cups)

2 tsp

vanilla extract

salt