Baked Apples with Oat Crumble Recipe
Baked apples with oat crumble are a simple crumble-style dessert, inspired by apple pie but without a pastry base. Tart apples soften and turn into a thick, cinnamon sauce, covered with a generous, buttery, very crunchy layer of oats. This version makes great use of “leftover” apples and doesn’t require equipment or kneading.
This is a homely twist on British crumble, very close to Polish apple pie but quicker because there’s no pastry or chilling. It fits perfectly into everyday home cooking, where apples from the fruit bowl are often used up this way.
It has the flavor of homemade apple pie but without dough, rolling or chilling, so it’s suitable even for a late evening dessert. The oat crumble adds a slightly nutty note and is more filling than just baked fruit. It’s great for a no‑waste kitchen because it uses apples at various stages of ripeness.
Why this version works
- Thick rolled oats create a substantial, distinctly crunchy crumble that softens more slowly than one made with fine oats.
- More tart apple varieties hold their shape better and balance the sweetness, so the dessert isn’t cloying.
- Simple proportions of butter, flour and oats make the crumble easy to bring together and ensure it browns evenly.
- The lightly pressed crumble layer traps the juices so a thick, aromatic sauce forms underneath.
Chef's tips
When mixing the apples with sugar, check how quickly juice appears – that’s a sign the fruit is very juicy and worth thickening with potato starch. It’s also easy to overdo the honey: too much will make the top start to burn before it has a chance to dry out properly. If the crumble is already deeply golden while the edges are still bubbling intensely, cover the dessert with foil for the last few minutes to prevent burning.
How to serve
Serve still warm with thick plain yogurt, sour cream or vanilla ice cream – the contrast between the hot apples and cold topping makes a huge difference. On a chilly evening, pair the dessert with tea with honey and lemon or a mug of cocoa. Leftovers are great for breakfast, reheated and served with an extra spoonful of yogurt.
Watch out for
- A layer of crumble that’s too thin can burn before the apples are fully soft – it’s better to make it slightly thicker.
- If the apples are very juicy, add 1–2 teaspoons of potato starch to them so that after baking the juices turn into a thicker sauce.
- Don’t skip the resting time after baking – if served too hot, the dessert will be runny and hard to portion.
Substitutions
- Replace part of the sugar with xylitol or erythritol, bearing in mind they caramelize less.
- Butter can be swapped for refined coconut oil if you need a dairy‑free version.
- Instead of only wheat flour, use half wheat and half spelt flour for a fuller flavor.
Ingredients
- tart or slightly tart apples - 5 piece
- rolled oats - 80 g
- flour wheat - 40 g
- butter - 60 g
- sugar - 50 g
- honey - 1 tablespoon
- ground cinnamon - 1 teaspoon
- lemon juice - 1 tablespoon
- salt
Preparation
- Preheat the oven to 180°C (top–bottom heat). Lightly grease a roughly 20×20 cm baking dish with butter so the bottom is just shiny, without puddles of fat.
- Peel the apples, remove the cores and cut into even cubes or slices about 0.5 cm thick. The pieces should be similar in size so that after baking they are all soft, without hard centers.
- Transfer the apples to a bowl, drizzle with lemon juice, add half the sugar, the cinnamon and honey. Mix until all pieces are glossy and a thin layer of juice appears at the bottom of the bowl.
- Transfer the apples to the baking dish, level the surface and gently press down with a spoon so the top is fairly flat. Individual tips shouldn’t stick out, as they can dry out and brown too much.
- In a second bowl, combine the oats, flour, remaining sugar and a pinch of salt. Mix until there are no visible dry clumps of flour and the oats are coated with sugar and look slightly lighter.
- Cut the butter into small cubes and add to the dry ingredients. Rub the butter into the flour and oats with your fingers until you get clumps like wet sand with some larger pieces; when squeezed in your hand, the mixture should hold together in a lump.
- Sprinkle the crumble evenly over the apples, creating a layer about 1–1.5 cm thick. Gently press it down with your hand or a spoon, but leave visible, irregular clumps – after baking these will be the crunchiest parts.
- Place the dish in the preheated oven and bake for 25–30 minutes, until the edges of the dessert are clearly bubbling and the crumble is golden, dry to the touch and lightly browned on the peaks.
- Remove the dessert from the oven and let it sit for 5–10 minutes, until the bubbling almost stops and the sauce under the crumble thickens slightly. Serve warm or at room temperature, scooping portions with a spoon.
- If after baking you see a lot of thin juice around the edges, gently stir it into the apples under the crumble with a spoon, without disturbing the top; after a moment the sauce will thicken and distribute more evenly.
Storage
Once cooled, store in the fridge for up to 3 days, tightly covered, as apples easily absorb odors. When reheated in the oven the crumble will become dry and crunchy again, while in the microwave it will noticeably soften.
I usually bake this crumble midweek when I find a few slightly wilted apples in the fruit bowl and don’t have the energy for apple pie. If I happen to have them in the cupboard, I toss in a handful of walnuts or raisins with the apples and the dessert instantly feels more “festive”.
