Do the biscuits go soggy overnight?

They soften slightly but keep some texture. For more crunch, add them in the morning instead.

Can I use frozen blueberries for blueberry pie overnight oats?

Yes. They thaw overnight and release more juice, which makes the jar taste even more like pie filling.

DessertsContinental

Blueberry Pie

All the nostalgia of blueberry pie without the hassle of baking. The digestive biscuit crumbs create that pie crust texture while fresh blueberries provide antioxidants. Perfect for satisfying dessert cravings while staying healthy. Great for anyone dealing with inflammation or looking to support brain health.

Time: 365 min
Method: Layer
Serves: 1
Energy: 530 kcal
Protein: 16 g

Go to the method

Bowl of blueberry pie overnight oats topped with fresh blueberries and digestive biscuits

Method

Step 1: Layer fresh blueberries over your DIY Oats base.
Step 2: Crush digestive biscuits and sprinkle them on top to mimic a pie crust.
Step 3: The biscuits will soften slightly overnight but maintain enough texture to feel authentic.
Step 4: If you want it warmer and more pie-like, microwave for 30 seconds.
Step 5: The blueberries will burst and create a natural compote.

Notes from the Department

Berry goodness

Nutrition

1 serving

530 cal | 16g protein | 13g fiber

2 servings

1060 cal | 32g protein | 26g fiber

Estimates. Not medical advice.

Why it works

Pie has two jobs: a fruity filling and a crumbly crust. Here the blueberries do the first and crushed digestive biscuits do the second. Overnight, the berries soften and some burst, making a loose compote in the jar. The biscuits soften a little but keep enough texture to remind you of pastry. It is pie by committee, and for once the committee got it right.

Keep the crust crunchy

If you like a crisper top, keep the crushed biscuits in a small bag and scatter them over in the morning. If you like it soft and cakey, add them the night before. Want it warm? Thirty seconds in the microwave helps the berries burst into a proper filling.

Swaps

Any plain, wholewheat-style biscuit works in place of digestives. Frozen blueberries are fine and give more juice. A little lemon zest or a drizzle of honey makes the filling brighter. If you don't have a DIY Oats jar, soak rolled oats overnight in milk with chia and a few almonds, then layer the berries and biscuit crumbs on top.

Storage

Keeps covered in the fridge for a day. Expect the biscuits to be softer on the second serving.

Questions people ask

Do the biscuits go soggy overnight?: They soften slightly but keep some texture. For more crunch, add them in the morning instead.
Can I use frozen blueberries for blueberry pie overnight oats?: Yes. They thaw overnight and release more juice, which makes the jar taste even more like pie filling.

Department of Recipes