Katsu Curry Sauce
A mild, sweet Japanese curry sauce of carrot, onion, apple and curry powder, thickened with a roux.
makes 35 cubes, about 8p each

- Time
- 40 min10 min prep · 30 min cook
- Makes
- 35 cubes
- Cost per cubePer cube
- 8p
- Calories per cubeCalories
- 26 kcal
- A serving
- 3 cubes
- Spice
- 1 of 5
You’ll need
- 2 (300g)onions, chopped
- 2 (200g)carrots, chopped
- 1 (150g)apple, grated
- 4 cloves (20g)garlic
- 20gfresh ginger
- 25gmild curry powder
- 3gturmeric
- 40gplain flour
- 30mlsoy sauce
- 20ghoney
- 2chicken or veg stock cubes
- 800mlwater, to make up the stock
- 30mlrapeseed oil
Allergens: Gluten, Soya. Check the labels on stock cubes, sauces and pastes, as brands vary.
Use it for
Chicken katsu for one: breaded chicken, rice and 3 cubes · 3 cubes; Katsu curry udon · 4 cubes; Over chips with spring onions · 3 cubes
Method
- Step 1: Heat the oil over a medium heat and soften the onions and carrots for 12 minutes.
- Step 2: Add the garlic, ginger, curry powder and turmeric for 1 minute, then the flour for 1 minute.
- Step 3: Gradually whisk in the stock, then add the apple, soy and honey. Simmer for 15 minutes.
- Step 4: Blend completely smooth and season.
- Step 5: Cool, pour into 30ml trays and freeze.
| kcal | protein | carbs | fat | fibre | salt | |
|---|---|---|---|---|---|---|
| Per cube | 26 | 0.5g | 4g | 1g | 0.7g | 0.39g |
| Per 3 cubes | 78 | 1.5g | 12g | 3g | 2.1g | 1.17g |
Cook’s notes
- Straight from frozen into a pan with a splash of water, whisking.
- Garam masala at the end adds a little extra warmth.
- It thickens in the freezer; loosen with water when reheating.
Use it for
- Chicken katsu for one: breaded chicken, rice and 3 cubes · 3 cubes
- Katsu curry udon · 4 cubes
- Over chips with spring onions · 3 cubes
Freeze, reheat and serve
- Freeze
- Cool it within two hours, freeze it in 30ml ice-cube trays, then bag and label the cubes. It keeps for 6 months.
- Use from frozen
- Straight from frozen into a pan with a splash of water, whisking. Never refreeze thawed cubes.
- A portion
- 3 cubes is a serving: about 78 kcal.
Katsu Curry Sauce questions
Can I make it vegan?
Use vegetable stock cubes and swap the honey for sugar or maple syrup. Everything else in the sauce is plant-based.
Can I make it gluten-free?
Use a gluten-free flour blend for the roux, tamari instead of soy sauce and gluten-free stock cubes. Check the curry powder label too.
What else can I serve it with?
It's good with breaded tofu, aubergine or sweet potato katsu, or simply poured over rice with a fried egg on top.
Updated . Nutrition, costs and yields are estimates.





