Greek Yogurt Fudge: Easy No-Bake Chocolate Squares

Greek yogurt fudge is a creamy, chocolatey refrigerator fudge made with semisweet chocolate, sweetened condensed milk, and plain Greek yogurt. The yogurt adds a gentle tang that balances the sweetness; a slow melt and a proper chill help the squares set without baking.

Ingredients

18 oz (510 g) semisweet chocolate, finely chopped, or semisweet chocolate chips
1 can (14 oz / 396 g) sweetened condensed milk
1/3 cup (80 g) plain, full-fat Greek yogurt, brought to room temperature
2 tbsp (28 g) unsalted butter
1 tsp (5 ml) vanilla extract
1/8 tsp fine salt
1 tbsp (8 g) unsweetened cocoa powder, for dusting, optional

Instructions

Prepare the pan. Line an 8-inch (20 cm) square baking pan with parchment paper, leaving enough overhang on two sides to lift the fudge out later. Lightly buttering the pan before adding the parchment can help it stay in place. Measure the ingredients, chop the chocolate if using a bar, and take the yogurt out of the refrigerator so it can lose its chill while you work.
Warm the chocolate mixture gently. Put the chopped chocolate, sweetened condensed milk, and butter in a heatproof bowl set over a saucepan with a small amount of barely simmering water. The bottom of the bowl should sit above the water, not touch it. Stir frequently until the chocolate is nearly melted and the mixture looks thick and glossy, about 6–8 minutes. Alternatively, microwave the mixture in a microwave-safe bowl in 20-second bursts, stirring thoroughly between bursts. Stop as soon as only a few small chocolate pieces remain; the residual heat will melt them.
Take the bowl off the heat. Stir until completely smooth, then let the mixture stand for about 10 minutes, stirring once or twice. It should still be fluid and warm, but not piping hot. This pause makes it easier to incorporate the yogurt smoothly and helps avoid a lumpy or separated mixture.
Blend in the yogurt. In a small bowl, stir the room-temperature Greek yogurt until smooth. Mix a spoonful of the warm chocolate mixture into the yogurt, then stir in another spoonful. Scrape this loosened yogurt mixture back into the main bowl and add the vanilla and salt. Fold gently but thoroughly until no pale yogurt streaks remain. Avoid beating in air; a steady spatula or wooden spoon is enough.
Fill and level the pan. Scrape the fudge into the prepared pan and spread it into an even layer, pushing it into the corners. Tap the pan lightly on the counter once or twice to settle the surface. If you like, sift the optional cocoa powder over the top for a less-sweet finish. Add any toppings now, while the surface is still soft.
Chill until firm. Cover the pan without letting the cover press into the fudge and refrigerate for at least 4 hours, or until the center feels firm when lightly pressed. A deeper pan or a crowded refrigerator may need extra time. For especially neat squares, leave it overnight.
Cut and serve. Use the parchment overhang to lift the slab onto a cutting board. For clean edges, warm a large sharp knife under hot water, wipe it completely dry, and cut the fudge into 16 squares, wiping the blade between cuts. Let the pieces sit at room temperature for 5–10 minutes before serving if you prefer a softer bite.

Tips

Choose thick yogurt. Full-fat Greek yogurt gives the richest texture and contains less free liquid than regular yogurt. If you only have regular plain yogurt, strain it through a fine-mesh sieve lined with cheesecloth in the refrigerator until thick, then measure 1/3 cup (80 g). Skipping the straining can leave the fudge softer and may make it harder to cut.
Keep water away from the chocolate. Make sure the bowl and spatula are dry, and keep simmering water from splashing into the bowl. A little water can make melted chocolate seize into a stiff, grainy mass. Gentle heat and frequent stirring are more reliable than turning the burner high to speed things up.
Use room-temperature yogurt and temper it in. Cold yogurt can make the chocolate mixture tighten suddenly. Mixing a little warm fudge into the yogurt first narrows the temperature difference and makes smooth blending easier. If the mixture thickens anyway, keep folding gently; do not add water or more yogurt to loosen it.
For a less sweet result, adjust the chocolate rather than the condensed milk. You can use bittersweet chocolate around 60–70% cacao, but very dark chocolate will make the finished fudge firmer and more bitter. Do not replace the condensed milk with evaporated milk: it is unsweetened and thinner, so the fudge may not set as intended.

Serving Suggestions

Serve the squares cold or allow them to soften briefly at room temperature. Their chocolate flavor and faint yogurt tang work well after a meal with coffee, black tea, or a glass of cold milk. For a dessert plate, pair one or two squares with fresh strawberries, raspberries, or orange segments; the fruit’s acidity cuts through the richness without requiring a heavy topping.

For a party, cut the slab into small squares and arrange them in paper candy cups. The recipe makes 16 generous pieces, but you can cut each square in half for a larger dessert platter. Keep the pieces chilled until close to serving, especially in a warm room, because this dairy-based fudge softens as it sits. A light dusting of cocoa is optional, but it helps keep the top from looking overly glossy and adds a pleasant bittersweet note.

Variations

Peanut butter swirl: Warm 2 tablespoons (32 g) smooth peanut butter just until easy to drizzle. After spreading the fudge in the pan, spoon the peanut butter over the top and drag a skewer through it in broad swirls. Avoid mixing it all the way through, which can make the chocolate base harder to spread evenly. Almond butter works similarly, with a milder, nuttier flavor.

Crunchy nut fudge: Fold 1/3 cup (40 g) chopped toasted hazelnuts, almonds, or walnuts into the finished mixture before transferring it to the pan. Toasted nuts bring more aroma and crunch than raw ones. For a nut-free version, use toasted pumpkin seeds or crisped rice cereal; add either in the same quantity, and expect a lighter, more crackly bite.

Mint chocolate: Stir 1/4 teaspoon (1 ml) peppermint extract into the mixture with the vanilla. Extracts vary in strength, so start small; too much mint can overwhelm the chocolate. You can also replace the vanilla with an equal amount of peppermint extract, rather than using both, for a clearer mint flavor.

Fruit and spice: Add 1 teaspoon (2 g) finely grated orange zest, or a pinch of ground cinnamon, with the vanilla. For dried fruit, use no more than 1/4 cup (35 g) finely chopped dried cherries or cranberries so the mixture still cuts neatly. Avoid juicy fresh fruit in the fudge itself: its moisture can interfere with the set. Serve fresh fruit on the side instead.

Storage and Reheating

Because this fudge contains yogurt and other dairy, refrigerate it within 2 hours of making or serving. Store the squares in a sealed container, with parchment between layers, in the refrigerator for 3–4 days. Keep them away from strong-smelling foods, since chocolate can pick up nearby odors. The fudge is best served chilled or briefly softened on the counter; it does not need reheating, and warming it can make it greasy or too soft to handle.

To freeze, arrange the cut squares in a single layer until solid, then transfer them to an airtight freezer container with parchment between layers. Freeze for up to 2 months for the best texture. Thaw in the refrigerator for several hours or overnight, rather than on the counter, to reduce condensation on the chocolate. Once thawed, keep refrigerated and use within 3–4 days; avoid repeatedly freezing and thawing the same batch.

Frequently Asked Questions

Does Greek yogurt fudge taste strongly of yogurt?

No. The chocolate is the main flavor, while the yogurt contributes a mild tang that keeps the sweetness from tasting flat. Full-fat plain yogurt gives the smoothest, most balanced result. Flavored or sweetened yogurt can make the fudge too sweet and introduce flavors that compete with the chocolate, so plain yogurt is the best choice.

Can I use low-fat or nonfat Greek yogurt?

Yes, but the result may be a little less creamy and can set more softly, depending on how thick the yogurt is. If the yogurt has liquid sitting on top, pour that off and measure only the thick portion. Do not increase the quantity to compensate for a lighter texture; extra moisture may make the slab difficult to slice cleanly.

Why did my chocolate mixture turn grainy or stiff?

Chocolate can seize if it gets too hot or even a small amount of water enters the bowl. A sudden temperature change from very cold yogurt can also make the mixture firm up before it is evenly combined. Use dry tools, gentle heat, room-temperature yogurt, and the gradual mixing method in the instructions. If it becomes thick but still looks smooth, press it into the pan; chilling will firm it further.

How can I tell when the fudge is ready to cut?

After at least 4 hours in the refrigerator, the center should feel firm rather than fluid when gently pressed. If the knife drags or the middle squashes, chill it longer, ideally another hour or overnight. A warm, dry knife and a wipe between cuts help produce tidy edges; chilling the slab longer is more useful than trying to cut it while soft.

Can I make the fudge without sweetened condensed milk?

This recipe depends on sweetened condensed milk for sweetness and a dense, cohesive texture, so evaporated milk or ordinary milk is not a direct substitute. A different recipe designed around another sweetener or a nut-butter base would need different proportions and setting instructions. For this version, use the full amount of condensed milk and adjust the chocolate type to suit your preferred sweetness.

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