If your butter is not already room temperature, set it out to do so.
Preheat oven to 375°F. Prepare an 8x8 glass baking dish with nonstick spray.
To the baking dish add the wash & dried berries, sugar, flour, & lemon juice. Stir to combine. If there are juices from the berries in the pan, add a bit more flour. Stir to combine - this ensures you don't have a soggy bottom for this crisp later.
In a small bowl or dish, combine the crisp topping ingredients. With your hands crumble & mix them together. Small crumble chunks should form.
1.5 cup uncooked steel-cut oats, ½ cup all-purpose flour, ½ cup salted butter, ½ cup brown sugar
Crumble the oatmeal topping over the berries. Drop small dollops in an even layer to cover all the corners and edges evenly.
Bake in the preheated oven for 30-35 minutes. Once the berries are bubbling and the topping is golden brown, it is ready to remove from the oven.
Let the berry crisp cool and set for 10-15 minutes. To serve while warm, scoop into individual bowls. Add whipped cream or vanilla ice cream for an a la mode dessert.
Notes
SUBSTITUTIONS & VARIATIONS:
Steel-Cut Oats - quick cooking can be replaced by regular but may take longer to cook & won't be as chewy.
Flour - use gluten-free flour, Bob's Redmill 1:1 baking flour is the best substitute using the same exact measurements.
Berries - frozen instead of fresh, defrost & drain first.
STORING & REHEATING:
Store on the counter for 2 days or in the refrigerator for up to 5 days.
To reheat, microwave a single serving for 20-30 seconds.