Cherry Berry Crumble

Ingredients

• Topping
• 1 cup unsalted butter, cold, cut into small pieces, plus more for baking dish
• 2 1/4 cups all-purpose flour
• 3/4 cup packed dark brown sugar
• 1/3 cup granulated sugar
• 3/4 teaspoon ground cinnamon
• 1/4 teaspoon mace (or nutmeg)
• 1/4 teaspoon salt
• 1/2 cup old fashioned oats
• Filling
• 2 cups berries (I used blueberries)
• 3 lbs cherries, pitted (thawed and drained frozen cherries also works well)
• 1/2 lemon, juice of
• 1 teaspoon pure vanilla extract
• 1/2 cup dark brown sugar
• 2 tablespoons flour
• 1/4 teaspoon salt