For regular large batches of caramelised onions, start with a hob whose cooking zones suit the magnetic base of your widest pan; a bridge or flex zone is worth considering when one circular zone is too small. Easy heat adjustment matters more throughout the long cook than PowerBoost, while the worktop opening, ventilation space and electrical connection must suit the exact model.
If you cook onions for several meals at once, the base of your frying or sauté pan is a more useful starting point than the hob’s highest power setting. Compare it with the usable zone layout, particularly if you are considering a bridge or flex model.
If you can stay with the pan through a long cook, look for controls you can adjust easily as the onions soften and brown. A timer or pause function may be useful, but neither replaces checking and stirring the food.
If you are replacing a built-in hob, measure the existing opening and check the space below it before choosing cooking features. The model’s connection requirements and your induction-compatible cookware also affect the choice.
Start with pan-base fit and controllable heat, then check whether a built-in installation suits your kitchen. A portable single-zone cooker is a different choice when temporary use matters more than cooking space.
| Concern | What to check | Who this matters to |
|---|---|---|
| Wide-pan capacity | Measure the pan’s magnetic base and compare it with the exact zone map; check bridge or flex operation if one zone is too small. | If I cook a broad panful of onions for several meals, I need the cooking area to suit that pan rather than choosing by boost power alone; around 36% of consumers put pan space first. |
| Gentle heat control | Check how the heat is adjusted at lower settings and whether the exact model has a useful timer or pause function. | During a long, attended cook, I want to lower and adjust the heat as the onions brown without relying on a rapid-heating setting. Roughly 29% of consumers make gentle control their primary concern. |
| Worktop and electrical fit | Use the model’s installation drawing to check the cut-out, ventilation and clearance, then confirm whether it is plug-in or hardwired. | When replacing an existing hob, I need one that can fit the opening and suit the kitchen’s electrical arrangement before its extra features matter; around 21% of consumers prioritise fitting and connection. |
| Temporary or small-space use | For a portable cooker, check the usable cooking surface against your pan base and remember that one unit has one cooking zone. | If I need an occasional extra station or a cooker I can move, I may accept less pan and simultaneous cooking space; approximately 14% of consumers put that flexibility first. |
PowerBoost is a rapid-heating feature, not a setting to rely on throughout caramelising. Good Food gives 25–30 minutes for caramelising onions in one recipe, so the ability to reduce and adjust heat matters during the cook.
Check the lower-setting controls and use boost for initial heating only if it suits your pan and recipe.
Overall hob width does not tell you how much of a broad pan base an individual zone accommodates. AEG describes the Bridge function on its TO64IB00FB as joining two heat zones into one larger cooking area.
Measure your pan’s magnetic base and compare it with the exact model’s zone map and bridge or flex instructions.
Connection requirements differ even among 60 cm models: AEG specifies the TO64IB00FB as hardwired only, while Bosch describes the PUG61RAA5B as Plug & Play.
Check the model’s installation instructions and the suitability of the existing electrical arrangement before ordering.
Choosing a hardwired model may mean arranging fixed electrical work.
Models can require different worktop openings and space underneath. A matching overall width does not establish that the cut-out, nearby drawer or ventilation arrangement will work.
Compare your measurements with the exact installation drawing, including the cut-out, worktop thickness and clearances below.
An incompatible opening may require changes to the worktop or cabinet before fitting.
These examples illustrate model-specific layouts and installation choices; a feature listed for one model should not be assumed to apply across its brand.
The 60 cm TO64IB00FB is a built-in option to examine if a wide batch pan calls for a bridge cooking area.
The 60 cm T66FHX4L0 is relevant if flexible pan placement and temperature management are priorities.
The 60 cm PUG61RAA5B is a plug-in route to examine when a conventional individual-zone layout suits the pan.
The KIV834 is an 80 cm built-in option to examine where there is room for a wider bridge hob.
These choices cover two built-in formats and a portable single-zone cooker. Match your batch pan to the cooking area before deciding which format suits your kitchen.
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Consider this built-in format if you want zones available for other dishes while cooking onions. Check the cooking-zone dimensions against your batch pan and the model’s fitting and connection instructions before ordering.
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Consider the narrower built-in format where worktop space is limited, provided one zone suits your onion pan. The product name specifies two zones, 2900 W, touch controls, nine power levels and a timer; check the installation instructions and the pan-base range for the zone you intend to use.
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A portable cooking station may suit an occasional smaller batch or temporary setup rather than replacing a multi-zone hob. The Joybuy listing specifies 10 heat settings; check that your magnetic pan base suits its single cooking surface.
Only if your current pans lack an induction-compatible magnetic base. Which? notes that copper, glass and aluminium alone will not work on induction; check the base of the wide pan you plan to use before choosing a zone layout.
No; if boost suits your pan and recipe, use it for initial heating before reducing to a setting you can control. Good Food’s caramelised-onion recipe describes a 25–30 minute cook, so keep checking and stirring the onions rather than relying on rapid heating.
No: AEG specifies the TO64IB00FB as hardwired only, while Bosch describes the PUG61RAA5B as Plug & Play. Check the electrical requirements in the exact model’s installation instructions before ordering.
Measure the worktop cut-out and check the space and ventilation below it against the exact model’s installation drawing. Bosch cautions that installation methods and measurements vary by model; also measure the magnetic base of the pan you want to use.
No: GOV.UK describes Approved Document P as electrical-safety guidance for dwellings in England. For fixed electrical work, follow the appliance’s instructions and check the requirements applicable where the hob will be installed rather than applying England-specific guidance across the UK.