When oranges are in season, you must make homemade orange curd. This simple, easy no-fail recipe for curd filling is the best you will ever taste. Sweet, tangy with a luxurious texture. An orange curd that takes no more than 20 minutes to prepare and can be used as a filling for cakes, pies, and desserts is a must-have recipe.
Measure all ingredients before you start. Cut the butter into cubes - keep chilled.
Place oranges and lemon in the microwave for 10 seconds before you cut and squeeze this will make it easy. Warm the orange juice for about 30 secs.
Use a double boiler or make your own - To make your own add an inch of water to the saucepan with a heatproof bowl on top. The water should not touch the top bowl.Pro tip - we use a double-boiler to prevent the eggs from getting scrambled with direct heat.
In the top bowl of your double boiler - Add egg and yolks, sugar, salt, cornstarch, and zest. Whisk until light and fluffy - sugar should almost melt.
Add orange juice and lemon juice slowly into the egg mixture. Now place the bowl on the double boiler
Continue to stir on medium heat. The mixture should cook with just the steam from the water in the saucepan below.Pro tip - if you cook on low it will take forever to thicken. Since we are cooking on a double boiler you can keep the heat medium heat and stir continuously.
After about 8 to 10 minutes - you will notice the foam that was caused by whipping the egg mixture will slowly disappear and the mixture will start to thicken.
Continue to stir until it coats the back of your wooden spoon or spatula. Remove from heat.
Gradually add cubes of butter one at a time. Make sure each piece is well incorporated. The mixture will continue to thicken as it cools.Pro tip - the cool butter stops the cooking and makes it smooth and velvety. Add it slow but not too slow or the last of the butter won't incorporate in cooled curd.
Once all the butter has been incorporated, strain it through a mesh or a strainer to remove the zest. This will also give you a smooth creamy curd.
The curd is best stored in a mason or glass jar in the fridge. The presence of eggs in lemon or orange curd makes it a perishable filling so any item that has homemade lemon or orange curds such as cakes and pie needs to be placed in the fridge.
Avoid keeping fruit curd or citrus fillings in metal containers as it can react with the metal.
Egg yolks can react with the metal such as aluminum and cause it to become green in color
Tips for making this curd
The taste of the orange depends on the oranges and lemons you use. Use good quality sweet oranges, not oranges that are sour otherwise it will have a very sour orange curd.
Juice the oranges easily - a great way to exact as much juice from oranges is to microwave the fruits for a few seconds (10 seconds).
When juicing the oranges - try not to take the membranes and seeds. These can impart a bitter flavor to the curd.
Warm the orange juice - warming the juice helps it incorporate into the egg yolks well.
Egg yolks / Whole eggs - I find that all egg yolks have a higher risk of curdling but the one whole egg does help stabilize it.
Whip eggs and sugar until light and fluffy - If you whip the eggs with sugar until the sugar almost dissolves it prevents the egg from curdling.
Do not let the curd boil - cooking on medium to low will prevent the curd from curdling. If the curd boils, it will give you orange-flavored scrambled eggs. So no matter how boring - cook on medium to low heat for 10 to 15 mins.
If you find the curd steaming up - take it off the heat for a few seconds this will help stabilize it.
How to know if the curd is done? You can use a thermometer and check until the curd reaches 170 F., But I find the best test is taste. Once the curd is thick and coats the back of a wooden spoon, taste it. It should not have any taste of eggs or cornstarch. If necessary cook for 30 secs more.
Add butter slowly - this will help bring the temperature of the curd down slowly without curdling.
The nutrition information and metric conversion are calculated automatically. I cannot guarantee its accuracy. If this data is important to you please verify with your trusted nutrition calculator. Thank you