Flavoured fats & thickeners
Garlic Oil and Crispy Garlic
tỏi phi · A Southeast Asian foundational flavoured-fat preparation in which thinly sliced garlic is gently fried in neutral oil until pale gold, then strained to yield two co-products: (1) crisp golden garlic chips used as a pungent garnish, and (2) an aromatic garlic-infused oil used as a cooking medium, finishing fat, or vinaigrette/mayo base. It is a reusable pantry component, not a finished dish.
The formula
≈250 ml neutral oil : 8 cloves thinly sliced garlic
Sources vary widely (Toast to Home uses ~20 cloves per 120 ml oil; Hungry Huy and Serious Eats lean closer to the 250 ml : 8–10 clove ratio for a balanced, re-cookable oil).
Identity
- yields two distinct, separately stored co-products (chips + oil)
- garlic is sliced paper-thin, not minced or smashed
- frying ends at pale gold, never deep brown
- carries a Southeast Asian lineage (Vietnamese tỏi phi, Thai krathiem jiaw)
- oil is reused as a cooking/finishing medium, not discarded
- serves as both garnish (chips) and flavoured fat (oil)
Ingredients
| Fat | neutral vegetable oil (canola, sunflower, grapeseed, or rice bran) | Use a light, high-smoke-point oil; olive oil is avoided as it dominates the flavour and scorches easily. |
| Aromatics | fresh garlic cloves, peeled and sliced paper-thin (≈1.5 mm) | Softneck is most common; thin uniform slices crisp evenly and infuse oil faster. |
| Seasoning | fine salt (optional) | Toast to Home finishes the chips with a pinch of salt for savoury pop. |
| Sweetener | powdered sugar (optional) | Serious Eats dusts lightly post-fry to offset carryover bitterness without sweetness. |
Method
- 1Peel and slice garlic cloves as uniformly and thinly as possible (mandoline ≈1.5 mm).Even thin slices fry and dehydrate at the same rate, preventing a mix of burnt and under-crisped pieces.
- 2Pour neutral oil into a light-coloured or stainless steel pan and heat over medium-low to about 130–140 °C.A light vessel lets you track colour; too hot and the garlic browns before the water inside flashes off.
- 3Add the sliced garlic and fry gently, stirring, for 1½–2 minutes until pale gold.Slow frying coaxes flavour into the oil while dehydrating the slices for crunch; high heat turns them acrid.
- 4Immediately lift the chips out with a slotted spoon (or strain the whole pan) the moment pale gold is reached.Residual oil heat continues cooking — 'carryover cooking' is the main cause of bitter, dark chips.
- 5Spread chips on paper towels; optionally dust with powdered sugar or salt while hot.Hot chips absorb seasoning evenly; paper towels wick excess oil to preserve crispness.
- 6Cool the garlic oil, bottle it, and refrigerate both components separately.Separating prevents the chips from softening and the oil from picking up steam/condensation.
Techniques that matter
low-temperature shallow frying
Lets moisture escape gently so slices crisp rather than steam, while transferring allium flavour into the oil.
colour-pulling by sight and smell
Pale gold plus a nutty, sweet aroma is the only reliable cue — clocks fail because of slice thickness and stove variance.
carryover-cooking compensation
Straining 10–15 seconds before 'done' colour prevents bitter over-browning on the tray.
Variations & derivatives
Vietnamese tỏi phiVietnam
Very thin slices fried in vegetable oil until straw-gold; chips garnish phở and cơm tấm, oil dresses salads and stir-fries.
Thai krathiem jiawThailand
Often slightly darker and used as a topping for khao man gai (Hainanese chicken) and congee.
Malaysian/Singaporean crispy garlicMalaysia & Singapore
Frequently fried in rendered pork fat or lard for richer body, then scattered over nasi lemak and vegetables.
Chinese-style crispy garlicChina
Commonly fried in peanut or rice bran oil and paired with blanched greens, dumpling fillings, and fried rice.
microwave methodSerious Eats adaptation
Garlic slices in oil microwaved in short bursts for a faster, stovetop-free batch.
Used in these dishes
Substitutions
- neutral vegetable oil → light olive oil — Works but the olive flavour dominates and the smoke point is lower; only suitable if you want that profile.changes result
- neutral vegetable oil → rice bran or peanut oil — Higher smoke point and faintly nutty; ideal for Asian applications.
- softneck garlic → hardneck garlic — Hardneck has a stronger, more complex flavour and slightly higher moisture — fry a touch longer.
- fresh garlic cloves → pre-minced jarred garlic — Moisture content is too high and slices irregularly; chips will steam rather than crisp.changes result
Troubleshooting
chips turn dark brown and taste bitter
oil too hot or chips left in oil past pale-gold stage (carryover cooking) → Strain earlier; lower heat to medium-low; pull chips the second they look straw-coloured, not gold.
chips are pale and chewy, not crisp
oil not hot enough, slices too thick, or too much garlic crowding the pan → Slice thinner (mandoline), work in small batches, raise heat slightly, and fry 10–20 seconds longer.
oil smells harsh or 'burnt' rather than aromatic
garlic scorched before straining, or oil overheated before garlic went in → Discard oil and start over at lower temperature; always add garlic to warm (not smoking) oil.
oil clouds or solidifies in the fridge
garlic moisture and natural emulsifiers released into the oil → Normal — bring to room temperature or warm gently; strain through cheesecloth before next use if cloudy.