Preheat oven to 350* F. Grease an 8x8-inch square baking pan with non-dairy butter or coconut oil.
In a large mixing bowl, combine frozen cherries, sugar, cornstarch, lemon juice and vanilla. Toss well to combine using your hands and set aside to slightly defrost for 20 minutes while you prepare the crumble.
2 Pounds Frozen Dark Sweet Cherries, ⅓ Cup Granulated Sugar, 2 tablespoon Cornstarch, 2 tablespoon Lemon Juice, 1 teaspoon Vanilla Extract
In another large bowl, combine oats, flour, brown sugar, melted butter, cinnamon and salt. Stir until well combined and crumbly.
1 ½ Cups Rolled Oats, ¾ Cup All-Purpose Flour, ½ Cup Light Brown Sugar, tightly packed, 8 tablespoon Non-Dairy Butter, melted, 1 teaspoon Cinnamon, ¼ teaspoon Kosher Salt
Toss the cherry mixture once more ensuring that there are no dry spots at the bottom of the bowl. Then, pour the cherries into the prepared 8x8-inch paking pan. Top evenly with the oat crumble an use your hands to gently press the crumble down.
Bake in a 350*F oven for 65-70 minutes or until the sides are bubbling and the oat crumble is golden brown. Cool slightly before serving on it's own or with a scoop of ice cream.