Slow Cooker Dessert

Slow Cooker Baked Apples

Whole apples cored to a closed base, packed with an oat, pecan and brown sugar filling, and stood upright in cider until tender.

3 hrs 15 min · 6 servings · slow cooker

Slow cooker baked apples stuffed with an oat and pecan filling in a syrupy sauce

Recipe by Emily Carter

on Recipesdarleen

37 recipes by Emily Carter

Published October 20, 2025 · Updated August 25, 2026

How Recipesdarleen publishes recipes

Whole apples stuffed with oats, pecans and brown sugar, stood in a shallow bath of cider and cooked slowly until they give to a spoon but still hold their shape.

Fifteen minutes of work, two to three hours on Low, and the oven stays off.

Why This Recipe Works

  • Cooking the apples whole rather than sliced means they steam inside their own skins. The skin holds the shape while the flesh goes soft, which is the whole appeal of a baked apple over a crumble.
  • Softened butter rather than melted is what makes the filling cohere. Melted butter runs off the oats and pools in the base of the crock.
  • Oats and pecans together give the filling two textures — the oats soften and absorb, the pecans stay firm and toasty.
  • A quarter teaspoon of salt in a sweet filling is small and load-bearing. Without it the brown sugar and cider read as flatly sweet.

The Apple Is the Dish

Most slow-cooker desserts are a batter that sets. This one is a piece of fruit that has to survive three hours intact and come out looking like an apple. Every part of the assembly serves that.

  1. A firm apple, cored to a closed base

    Firm is doing real work — a soft eating apple collapses into sauce well before three hours are up. The closed base turns the apple into a cup, which is what holds the filling in place.

  2. The filling, mixed separately

    Oats, pecans, brown sugar, cinnamon, nutmeg, salt, softened butter and vanilla, combined in a bowl first. The softened butter is the binder: it holds the dry ingredients together so the filling behaves as one mass rather than loose crumbs that float away.

  3. Packed in, then stood upright

    Stuffed and stood, not laid down. An apple on its side empties itself. This is also why the crock has to hold them all in a single layer.

  4. Cider poured AROUND, not over

    Half a cup of cider and a tablespoon of lemon juice go around the apples so they braise from below in a shallow bath. Poured over the top it would wash the filling straight out — the distinction is in the instruction for a reason.

The lemon juice is the least obvious ingredient and it is not there for flavour you would notice. Half a cup of cider plus brown sugar plus apple is a great deal of sweetness in one dish; a tablespoon of acid is what keeps the finished syrup tasting of apple rather than of sugar.

Ingredient Notes

Firm apples
Six, and firm is the specification rather than a preference. A variety that holds up to cooking is what stops this becoming apple sauce with oats in it.
Softened butter
Three tablespoons, softened rather than melted. It is the binder for the filling.
Apple cider or juice
Half a cup, and either works. It goes around the apples as a braising liquid and becomes the syrup you spoon over at the end.
Lemon juice
One tablespoon. Easy to dismiss and it is what keeps a very sweet dish tasting like fruit.

How to Make It

  1. Core the apples

    Core the apples, leaving the bottoms intact so each one forms a cup.

  2. Mix the filling

    Mix the rolled oats, chopped pecans, brown sugar, cinnamon, nutmeg, salt, softened butter and vanilla.

  3. Stuff

    Pack the filling into the cored apples.

  4. Stand them up

    Stand the apples upright in the slow cooker in a single layer.

  5. Add the liquid

    Pour the apple cider and lemon juice around the apples, not over them.

  6. Cook

    Cook on Low for 2 to 3 hours, until the apples are tender but still holding their shape.

Success Tips

  • Leave the bottoms of the apples intact.
  • Use firm apples; soft ones collapse.
  • Soften the butter, do not melt it.
  • Pour the liquid around the apples, never over them.

Serving Ideas

Vanilla ice cream or cream, with the syrup from the crock spooned over. They are also very good cold the next morning with yogurt, which is not a claim about anyone's habits so much as an observation about what a cooked apple with oats in it already is.

Storage and Reheating

Refrigerate

Refrigerate up to 4 days in their syrup, which keeps them from drying out.

Freeze

Not recommended. Cooked whole apples turn mealy and lose the shape the recipe worked to keep.

Reheat

Gently, covered, with some of the syrup spooned over — a low oven or a short spell in the microwave both work.

Frequently Asked Questions

My apples collapsed into mush.

Either the variety was too soft for a long cook, or they went past the three-hour mark. Start checking at two hours: the cue is an apple that yields to a spoon but still stands up, and it arrives sooner in smaller apples.

The filling ended up in the liquid.

The base of the apple was pierced during coring, or the cider was poured over the top rather than around. Both are easy to get wrong and both empty the apple; the closed base and the pouring direction are the two instructions to be careful with.

Can I leave the pecans out?

Yes, and the filling still works — you lose the crunch and it will be a little softer overall. Walnuts substitute directly if you have those instead.

Recipesdarleen

Slow Cooker Baked Apples

Whole apples cored to a closed base, packed with an oat, pecan and brown sugar filling, and stood upright in cider until tender.

Prep
15 min
Cook
3 hrs
Total
3 hrs 15 min
Yield
6 servings

slow cooker

EquipmentSlow cooker · Apple corer or a small sharp knife · Bowl

Before you startCore from the top and stop before you come out of the bottom. The instruction says to leave the bottoms intact and it is the single thing this recipe depends on — an apple cored straight through is a tube, and the filling drains out of it into the cider within the first hour.

Ingredients

Instructions

  1. Core the apples, leaving the bottoms intact so each one forms a cup.
  2. Mix the rolled oats, chopped pecans, brown sugar, cinnamon, nutmeg, salt, softened butter and vanilla.
  3. Pack the filling into the cored apples.
  4. Stand the apples upright in the slow cooker in a single layer.
  5. Pour the apple cider and lemon juice around the apples, not over them.
  6. Cook on Low for 2 to 3 hours, until the apples are tender but still holding their shape.