Pumpkin Cheesecake with Marshmallow Meringue

INGREDIENTS

1 1/8 cups

all-purpose flour

1/2 cup

ground walnuts

3 tbsp

light brown sugar

8 tbsp

unsalted butter, melted and cooled slightly

1 tsp

ground cinnamon

1/2 tsp

freshly grated nutmeg

1/4 tsp

allspice

1/4 tsp

kosher salt

1 lb

cream cheese, at room temperature

1 cup

light brown sugar

1 cup

pumpkin puree

1 tbsp

vanilla extract

large eggs

3/4 cup

egg whites

1 cup

firmly packed light brown sugar

1/4 cup

agave nectar

Seeds of 1 vanilla bean