Whats Going On?
Why do I add corn syrup?
Corn syrup acts as an "interfering agent" in this and many other candy recipes. It contains long chains of glucose molecules that tend to keep the sucrose molecules in the candy syrup from crystallizing. In fudge, the addition of "interfering agents" can be a double-edged sword: you want crystals to form, but not until the cooked mixture has cooled down to a certain degree. Why do I add vanilla?
Vanilla is often added to chocolate candies or other chocolate recipes because it complements and accents the flavor of chocolate. Why do I need to stop stirring after the syrup begins to boil?
At this point, you have dissolved the crystal structure of the sugar. Stirring or other agitation is one of the many factors that can encourage the fructose and glucose molecules in your syrup to rejoin and form sucrosecrystals of table sugar. Why do I wash down the sides of the pan?
The sugar crystals are dissolved at this point in the process. But a single seed crystal of sugar clinging to the side of the pan might fall in and encourage recrystallization. Why does the fudge need to cool for such a long time?
The key to a smooth and creamy texture is a fudge that's full of thousands of tiny sugar crystals. Heating the syrup to a high temperature and then allowing it to cool, undisturbed, produces a supersaturated solutionthis means that the solution contains more sugar molecules than would normally be possible at room temperature. A supersaturated solution is highly unstable, and any agitation will cause crystallization to occur throughout the solution. If fudge is stirred while it's still hot, fewer crystals form, and they grow larger as the syrup cools, resulting in a coarse, grainy candy. Why is it so important to keep stirring until the fudge "sets"?
Stirring helps control the size of the sugar crystals that formit keeps them from growing too large, which would produce gritty fudge. close this window |
FAQs
As water gradually evaporates, sugar is concentrated and the temperature of the mixture rises above 100°C (212°F). If there is too much evaporation, when the cooking time is too long, there will not be enough water left in the fudge and it will be too hard.
What is the secret to non-grainy fudge? ›
Once a seed crystal forms, it grows bigger and bigger as the fudge cools. A lot of big crystals in fudge makes it grainy. By letting the fudge cool without stirring, you avoid creating seed crystals. Stirring would help sucrose molecules "find" one another and start forming crystals.
How does fudge relate to chemistry? ›
When making fudge, heat and acid work together to convert sucrose – basic white sugar – into its two components, glucose and fructose. When these sugars are present, they prevent sucrose from turning into big sugar crystals.
Is evaporated milk or condensed milk better for fudge? ›
Evaporated milk doesn't have sugar added. The sweetened condended milk is needed as no extra sugar is added to the fudge. If evaporated milk were used then the fudge would not be sweet enough and also would still be too soft unless the fudge is frozen.
Should you stir fudge while it's boiling? ›
Stir the ingredients to dissolve the sugar until the mixture comes to a boil. If your recipe uses milk, stirring will keep the mixture from curdling. But once it reaches about 236–238 degrees F/113–114 degrees C (the "soft-ball" stage), do not stir it or even shake the pan.
What happens if you cook fudge too long? ›
Too cooked
The result is hard and brittle fudge. To save the fudge, put it in a saucepan with 45 to 60 ml (3 or 4 tbsp.) of 35% cream and bring to a boil, stirring until the sugar is completely melted. Then let it boil without stirring until the thermometer reaches 114 to 115 °C (237 to 239 °F).
Why is fudge so hard to make? ›
Making fudge can be a challenging endeavor, requiring precision and attention to detail to achieve the perfect texture and consistency. The process of making fudge involves a delicate balance of cooking, cooling, and beating, and the smallest mistake can result in fudge that is too soft or too hard.
Why is my 3 ingredient fudge not setting? ›
Why won't my 3 ingredient fudge set? This often happens when the condensed milk and chocolate chip mixture isn't hot enough to start. Everything must be completely melted before it is transferred to the pan to cool.
How long do you boil fudge to get to soft ball stage? ›
How long does it take to make fudge:
- about 18 min to reach boiling.
- about 40 minutes to reach soft ball stage.
- 60 minutes to cool.
- 28 minutes to beat in a KitchenAid (your time for this may vary)
- 4 hours to set.
How do you fix fudge that is too soft? Bring the fudge back to a boil with 1–2 US tbsp (15–30 ml) of cream. If your fudge is soft or runny, it probably didn't come up to a high enough temperature while it was cooking. Put it back into the saucepan and add 1–2 US tbsp (15–30 ml) of 35% fat whipping cream.
How can you fix soft fudge? Put it in a microwave safe bowl that is large enough that it won't boil over. Reheat it to the boiling point and cook for about 3 more minutes. Then you can beat some powdered sugar into it if this doesn't make it set.
What does cream of tartar do to fudge? ›
Cream of tartar is used in caramel sauces and fudge to help prevent the sugar from crystallizing while cooking. It also prevents cooling sugars from forming brittle crystals, this is why it's the secret ingredient in snickerdoodles!
What is the soft ball test for fudge? ›
The cold-water test for soft ball stage is this: Fill a cup with very cold water. Spoon a small amount of the boiling candy mixture into the cold water. If the syrup forms a soft ball in the water that flattens when removed, it is at soft-ball stage.
Why does butter separate when making fudge? ›
Fudge is basically an emulsion between sugar, butter and milk. If the butter gets too hot, it can separate, causing the fudge to become oily on top. This is easy to prevent by monitoring the temperature with a candy thermometer, but separated fudge can also be fixed.
What does cream of tartar do in fudge? ›
Cream of tartar is used in caramel sauces and fudge to help prevent the sugar from crystallizing while cooking. It also prevents cooling sugars from forming brittle crystals, this is why it's the secret ingredient in snickerdoodles!
What would cause fudge not to harden? ›
The main reason is that your Fudge has not reached the optimum temperature. If your mixture only reaches 110 or 112 degrees Celsius it will always be soft. That's why we recommend investing in a sugar thermometer. Another reason your Fudge is not setting is that the ratio of liquid to sugar is too high.
