Banana Blueberry Bars

INGREDIENTS

1 cup

granulated sugar, divided

2 tsp

cornstarch

1 tbsp

freshly squeezed lemon juice

2 cups

blueberries (fresh or frozen, thawed, and patted dry)

1 tbsp

freshly squeezed lemon juice

1/2 cup

unsalted butter, at room temperature

1/2 cup

very ripe mashed banana (about 1 large)

1 tsp

pure vanilla extract

1 1/3 cups

white whole wheat flour

1 cup

all-purpose flour

1/2 tsp

kosher salt

1/4 cup

raspberry jam

1/2 cup

old fashioned rolled oats

1/3 cup

toasted chopped almonds