Lemon fudge is a five-ingredient, no-thermometer confection that sets in the fridge rather than on a stove. Sweetened condensed milk, white chocolate chips, butter, fresh lemon juice, and lemon zest, melted together in a saucepan, poured into a lined pan, and refrigerated for four hours. The result is a creamy, dense, genuinely lemony fudge that cuts into clean squares and keeps for five days.
The reason this works without a candy thermometer is that the sweetened condensed milk provides the sugar concentration and dairy fat that traditional cooked fudge achieves through precise temperature control. You’re not making traditional fudge; you’re making a set confection that behaves like fudge. The trade-off is a slightly softer, creamier texture rather than the crystalline snap of a properly pulled fudge, which most people find preferable anyway.
The method
Sweetened condensed milk, butter, fresh lemon juice, and two tablespoons of the lemon zest in a saucepan over low to medium heat. Stir until everything is combined and the butter has melted fully through. The heat here is gentle; you’re not trying to cook anything, just melt and combine. Remove from heat, then add the three cups of white chocolate chips and stir continuously until all the chips have melted into the mixture.
The white chocolate goes in off the heat deliberately. White chocolate scorches easily and burns before it melts if added to a hot pan still on the burner. Off the heat, the residual warmth from the condensed milk mixture is enough to melt the chips with patient stirring. If they’re not melting after a few minutes, return the pan to very low heat briefly, stirring constantly, then remove again.
Pour the mixture into an eight by eight pan lined with parchment paper. The parchment is what allows you to lift the set fudge out as a single slab for clean cutting. Scatter the remaining tablespoon of lemon zest over the top while the fudge is still soft and warm so the zest adheres. Let it cool at room temperature first, then cover and refrigerate for at least four hours until fully set.
The lemon
Three tablespoons each of fresh lemon juice and lemon zest. The zest goes in two stages: two tablespoons into the saucepan where it cooks slightly into the mixture and releases its citrus oils into the fat, and one tablespoon over the top as a visible garnish. The lemon juice adds tartness; the zest adds aromatic depth that juice alone doesn’t give you. Together they produce a fudge that tastes unmistakably of lemon rather than just sweet-cream-white-chocolate.
Fresh juice and fresh zest are both worth the extra step here. Bottled lemon juice has a flatter, more acidic flavor without the brightness of fresh, and dried zest has none of the fragrant oils of fresh. Five ingredients is already a short list; using the best versions of all of them matters more than it would in a complex recipe.
Cutting and serving
Once fully set, lift the fudge out of the pan using the parchment overhang and place on a cutting board. Cut into squares with a sharp knife. Wiping the knife clean between cuts produces cleaner edges. The fudge is somewhat soft at room temperature; if you want very clean cuts, put it back in the fridge for fifteen minutes before cutting.
White chocolate fudge is rich in a way that dark chocolate isn’t, and the lemon helps cut through that richness in the same way a citrus curd cuts through the fat in a pastry cream. The combination is less cloying than plain white chocolate fudge and more interesting than plain lemon candy. Makes twenty-four pieces. Refrigerate in a sealed container for up to five days. Nutrition per piece: 192 calories, 23g carbohydrates, 11g fat, 3g protein.
Variations
The same method works with lime in place of lemon for a slightly sharper, more tropical version. A teaspoon of lavender steeped in the warm condensed milk mixture and strained out before the chocolate goes in adds a floral note that pairs well with the lemon zest garnish. A thin layer of crushed graham crackers pressed into the bottom of the pan before pouring the fudge gives it a crust layer that makes each piece feel more like a bar than plain fudge.
Lemon Fudge
Description
Creamy lemon fudge made by melting white chocolate chips into a condensed milk and lemon base, then chilling in a pan for four hours. No candy thermometer needed. Makes 24.
Ingredients
Instructions
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Line an 8x8-inch baking pan with parchment paper, leaving overhang on the sides.
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Combine the sweetened condensed milk, butter, lemon juice, and 2 tablespoons of the lemon zest in a saucepan over low to medium heat. Stir until the butter is melted and everything is combined.
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Remove from heat. Add the white chocolate chips and stir continuously until all the chips have melted into the mixture.
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Pour into the prepared pan. Scatter the remaining 1 tablespoon of lemon zest over the top.
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Cool to room temperature, then cover and refrigerate for at least 4 hours until fully set.
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Lift out using the parchment overhang, cut into 24 squares, and serve. Refrigerate leftovers in a sealed container for up to 5 days..
Nutrition Facts
Servings 24
- Amount Per Serving
- Calories 192kcal
- % Daily Value *
- Total Fat 11g17%
- Saturated Fat 6g30%
- Trans Fat 0.1g
- Cholesterol 15mg5%
- Sodium 42mg2%
- Potassium 129mg4%
- Total Carbohydrate 23g8%
- Dietary Fiber 0.1g1%
- Sugars 22g
- Protein 3g6%
- Vitamin A 110 IU
- Vitamin C 2 mg
- Calcium 93 mg
- Iron 0.1 mg
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
