How To Make Prawn Crackers
RECIPE GUIDELINES
The recipe should be looked at as a guideline for ingredient ratios. The aim is to try to keep the ratio of prawn meat to tapioca starch at 1:1 or less (ie more prawn than tapioca starch).
- 1 kg whole prawns to yield 500g prawn meat after deheading and shelling
- 100g tapioca starch for making paste & additional 400 g tapioca starch for making dough
- 200ml prawn stock (made from heads and shells)
- 3 - 4 tspn salt or to taste
- ground white pepper
- 2 tspn baking powder
Prepare Prawn Stock
Remove heads and shells from prawns. Using a small sharp knife, de-vein the prawns by making a slit along the back of each prawn and removing the intestinal tract. Dry the prawn meat with kitchen paper and set aside.
Place the heads and shells into a large pot with enough water to barely cover.
Place the heads and shells into a large pot with enough water to barely cover.
Image: Siu Ling Hui
Bring to the boil and cook, uncovered, until the liquid is reduced to approximately 300 ml. The reduced volume of liquid doesn't have to be precise at this stage - the aim is to get as much flavour out of the heads and shells as possible and achieve a concentrated prawn stock.
Image: Siu Ling Hui
Make Prawn Starch Paste
This is akin to the sour dough starter in bread making.
Strain the heads and shells from the prawn stock and measure the amount of stock. Weigh the prawn meat. For every 500 g of prawn meat, you require 200 ml of liquid. If the stock is greater than 200ml, boil it down to 200 ml. If you have say only 425 g prawn meat, boil the stock down to 170 ml. The arithmetic for the ratio calculation is as follows:
425 ÷ 500 = 0.85 or 85% of the base reference weight of 500 g
Therefore, you only need 85% of the 200 ml liquid that applies for 500 g prawn meat. 85% of 200 ml is 170 ml.
Strain the heads and shells from the prawn stock and measure the amount of stock. Weigh the prawn meat. For every 500 g of prawn meat, you require 200 ml of liquid. If the stock is greater than 200ml, boil it down to 200 ml. If you have say only 425 g prawn meat, boil the stock down to 170 ml. The arithmetic for the ratio calculation is as follows:
425 ÷ 500 = 0.85 or 85% of the base reference weight of 500 g
Therefore, you only need 85% of the 200 ml liquid that applies for 500 g prawn meat. 85% of 200 ml is 170 ml.
Weight of prawns central to amount of other ingredients. Image: Siu Ling Hui
Reduced Prawn Stock. Image: Siu Ling Hui
Weigh out 100 g of tapioca starch for 500 g prawn meat. Again, if you have less prawn meat, use proportionately less. Sift the starch into a small bowl.
Gradually add boiling hot prawn stock to the starch to make a sticky paste. If your stock is very dense, it will be more like a dough ball as illustrated in this picture.
Gradually add boiling hot prawn stock to the starch to make a sticky paste. If your stock is very dense, it will be more like a dough ball as illustrated in this picture.
Prepare The Prawn Meat Paste
In a food processor fitted with a steel blade, blend the prawn meat together with salt and pepper to a fine paste.
Grind prawn meat to fine paste. Image: Siu Ling Hui
Add the tapioca starch paste that you have made in the previous step and blend until the mixture well combined and homogenous.
Ground prawn meat with prawn starch paste added. Image: Siu Ling Hui
Make The Dough
Sift 400 g tapioca starch with 2 teaspoons baking soda in a large bowl. Transfer the prawn paste to a separate large bowl.
Gradually work the sifted starch into the prawn paste until you get a malleable dough. You don't want the dough to be too dry: add only enough starch to take the dough to a state where it can be easily handled and formed into rolls.
Depending on how damp the prawn paste is (which depends on how well you dried off the prawns and the stickiness of your tapioca starch paste), you may not need all 400 g tapioca starch. And that's a good thing as it means you will have a very high prawn content in your crackers!
Gradually work the sifted starch into the prawn paste until you get a malleable dough. You don't want the dough to be too dry: add only enough starch to take the dough to a state where it can be easily handled and formed into rolls.
Depending on how damp the prawn paste is (which depends on how well you dried off the prawns and the stickiness of your tapioca starch paste), you may not need all 400 g tapioca starch. And that's a good thing as it means you will have a very high prawn content in your crackers!
Prawn "dough". Image: Siu Ling Hui
Form Dough Into Rolls; Then Steam
Form the dough into cylindrical rolls of between 3 to 5 cm in diameter. You can do this "free hand". What I do to get evenly shaped cylinders is to roll the dough using a sushi mat lined with cling film.
Lightly grease the base of steamer trays or line them with damp muslin. You can use large bamboo steamers similar to the ones you see at dim sum places but they retain the smell of prawns afterwards. However, as they are relatively cheap, you can just throw them out after each use. Don't put the rolls on plates to steam as water will collect on the plate and turn your dough into a soggy mess.
Make sure the rolls are spaced well apart as they will double in size during steaming.
Lightly grease the base of steamer trays or line them with damp muslin. You can use large bamboo steamers similar to the ones you see at dim sum places but they retain the smell of prawns afterwards. However, as they are relatively cheap, you can just throw them out after each use. Don't put the rolls on plates to steam as water will collect on the plate and turn your dough into a soggy mess.
Make sure the rolls are spaced well apart as they will double in size during steaming.
Prawn dough rolls ready for steaming. Image: Siu Ling Hui
Steam the rolls over rapidly boiling water for about 45 minutes to 1 hour, depending on the diameter of your rolls. If your steaming vessel doesn't have a vented lid, either leave the lid slightly ajar to allow steam to escape or drape damp muslin or tea-towel over the rolls to stop condensation whilst they are cooking.
Prawn dough rolls soon after steamer lid is removed. Image: Siu Ling Hui
Slice The Rolls To Form Crackers
Place the cooked rolls on a wire rack to cool completely. Wrap each roll with cling film and refrigerate overnight. This allows the rolls to firm up for easy slicing.
Rolls firmed up after refrigeration, ready for slicing. Image: Siu Ling Hui
Using a sharp serrated knife, slice the rolls into slices of around 1 mm thickness.
Cut rolls into thin slices. Image: Image: Siu Ling Hui
Dry The Prawn Cracker Slices
It is important the crackers are thoroughly dried and very hard. They will not puff up properly on frying if there is moisture present.
Prawn crackers are traditionally sun-dried, a process which takes several days and good weather on your side. Drying overnight in a dehydrator is the most efficient way but in the absence of a dehydrator, leave them on wire racks in a dry airy place (a sunny spot is ideal but not essential) for at least 24 hours until quite well-dried out and then complete the drying in a very low oven for several hours.
To dry the crackers in a dehydrator, spread the slices in single layers on the food dehydrator trays. Set the dehydrator at the lowest setting (35ºC) and dry the slices for at least 18 hours.
Prawn crackers are traditionally sun-dried, a process which takes several days and good weather on your side. Drying overnight in a dehydrator is the most efficient way but in the absence of a dehydrator, leave them on wire racks in a dry airy place (a sunny spot is ideal but not essential) for at least 24 hours until quite well-dried out and then complete the drying in a very low oven for several hours.
To dry the crackers in a dehydrator, spread the slices in single layers on the food dehydrator trays. Set the dehydrator at the lowest setting (35ºC) and dry the slices for at least 18 hours.
Prawn cracker slices spread out to dry in food dehydrator. Image: Siu Ling Hui
When they are completely dry and hard, store them in an air-tight container in a cool dry place until required. I keep mine in the refrigerator.
Prawn cracker slices after 18 hours drying time. Image: Siu Ling Hui
Frying Prawn Crackers
Deep fry the crackers in very hot oil. As they will puff up within seconds of being placed in the oil, fry only 4 -5 crackers at a time so that you can remove them very quickly. Drain the cooked crackers on kitchen paper.
They can be served immediately or stored in a large air-tight jar (you'll find the jar empties very quickly!). Enjoy!
They can be served immediately or stored in a large air-tight jar (you'll find the jar empties very quickly!). Enjoy!
Drain fried crackers on kitchen paper to drain off any oil. Image: Siu Ling Hui
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