Grandma's Old-Fashioned Baked Beans
Every family gathering had a big brown dish of these somewhere near the middle of the table, going sticky at the edges and disappearing fast. Grandma's baked beans weren't the pale things from a tin — they were doctored, deepened and baked until the sauce turned dark and clingy, sweet with molasses and sharp with mustard.
The whole secret is baking them low, slow, and uncovered. That open-topped hour is what lets the sauce reduce, caramelise and form that lovely skin on top — cover them and you just get warm beans in watery sauce. The molasses does the heavy lifting on flavour; the mustard and a splash of cider vinegar keep all that sweetness in check.
Serve them with everything the summer throws at you — sausages, burgers, a jacket potato — and know they'll be even better tomorrow.
Grandma's Old-Fashioned Baked Beans
Bacon, onion, molasses and mustard, baked low and slow until thick and sticky.
Ingredients
- 6 rashers streaky bacon, chopped
- 1 large onion, finely chopped
- 3 x 400 g cans haricot/navy beans, drained
- 4 tbsp molasses (or black treacle)
- 60 g soft brown sugar
- 4 tbsp ketchup
- 1 tbsp mustard & 1 tbsp Worcestershire
- 1 tbsp cider vinegar
- 150 ml water or stock
- Salt & black pepper
Method
- Bacon & onion. Oven to 160°C (fan 140°C / gas 3). In an ovenproof pot, cook the bacon until the fat renders, then soften the onion in it for 5–6 minutes.
- Sauce. Stir in the beans, molasses, brown sugar, ketchup, mustard, Worcestershire, vinegar and water. Pepper to taste — the bacon brings the salt.
- Low, slow, uncovered. Bake uncovered about 1 hour, stirring once halfway, until thick, glossy, caramelised, and skinned on top. Never cover it.
- Rest. Ten minutes — it thickens more as it cools. Serve hot with anything off the grill.
Leave a few whole bacon pieces on top rather than stirring them all in — they crisp up in the open oven and get fought over.
Tips for thick, sticky beans
Bake uncovered
The open top is what caramelises the sauce and forms the skin. Covering steams them watery.
Molasses is the magic
It brings the dark, almost-smoky depth. Don't swap it all for sugar — you'll lose the soul.
Better tomorrow
Make ahead — the flavour deepens overnight. Loosen with a splash of water to reheat.
Questions, answered
Can I use dried beans instead of canned?
Yes — the true old-fashioned way. Soak 400 g dried navy beans overnight, simmer 1–1½ hours until nearly tender, then bake in the sauce 2½–3 hours at 150°C, topping up water as needed. Canned gives the same flavour far faster, which is why grandma used them for potlucks.
Why are mine watery?
Covered, or under-baked. Bake uncovered so the sauce reduces and caramelises — it should coat a spoon and skin over on top, thickening more as it rests.
What gives that deep flavour?
Molasses and slow, uncovered baking. The molasses brings dark, smoky sweetness; the mustard and vinegar cut it; the long bake concentrates it all.
Make ahead or freeze?
Both — better a day ahead as the flavour deepens, and they freeze well for 3 months. Reheat with a splash of water.