Berries:
5 cups blueberries, fresh or frozen
3/4 cup sugar
1 teaspoon lemon zest
1 Tbsp lemon juice
1 pinch cinnamon

Biscuits:
2 cups all purpose flour
Pinch cinnamon
Pinch ground nutmeg
2 Tbsp white granulated sugar
1 Tbsp baking powder
1/2 teaspoon salt
8 Tbsp (1 stick) cold, unsalted butter, cut into 1/2-inch cubes
7/8 cup (1 cup minus 2 Tbsp) heavy whipping cream
1 large egg*
1 tsp vanilla extract

Heavy cream for whipping

*The egg is optional. Including the egg will result in a less crumbly shortcake biscuit, but either way, with or without egg, is good.