Toss whole unpeeled raw cucumbers in the slow cooker and 4 other ingredients to get a dessert so delicious your family will be begging for more!

This 5-ingredient slow cooker Earth Day dessert leans into the spirit of low-waste cooking by using whole, unpeeled raw cucumbers in an unexpected way. Cucumbers, technically a fruit, have a mild sweetness and high water content that can be coaxed into a soft, almost melon-like texture when cooked slowly with sugar and warm spices. Here, they’re tossed straight into the slow cooker with just four other pantry staples to create a gently spiced, spoonable dessert that feels comforting and a little whimsical—perfect for an eco-conscious celebration or a fun family experiment that actually tastes good.

Serve this warm cucumber dessert in small bowls, making sure to spoon plenty of the syrup over the softened cucumbers. It pairs nicely with a scoop of vanilla or honey ice cream, a dollop of Greek yogurt, or lightly sweetened whipped cream. A sprinkle of granola, toasted nuts, or crushed cookies adds welcome crunch. For a more elegant presentation, layer the cucumbers and their syrup in clear glasses with yogurt or mascarpone for a simple parfait, or spoon over plain pound cake to soak up the spiced juices.

Servings: 4

4 small firm cucumbers, whole and unpeeled (about 1 1/2 pounds total)

Place the whole, unpeeled raw cucumbers in a single layer on the bottom of a 3- to 4-quart slow cooker. They should fit snugly but not be tightly packed; it’s fine if they touch.

In a small bowl, whisk together the granulated sugar, honey or maple syrup, ground cinnamon, and vanilla extract until you have a thick, fragrant paste. It won’t be completely smooth, but the goal is to distribute the cinnamon and vanilla evenly through the sweeteners.

Drizzle the sugar mixture evenly over the cucumbers in the slow cooker, turning the cucumbers gently with clean hands or tongs to coat them as best you can. Some of the mixture will fall to the bottom, which is fine—it will melt into a syrup as it cooks.

Cover the slow cooker with the lid and cook on LOW for 3 to 4 hours, or until the cucumbers are very tender when pierced with a knife and have released plenty of liquid, forming a light syrup in the bottom of the cooker.

Once the cucumbers are tender, carefully transfer them to a cutting board with tongs. Let them cool just enough to handle, then slice into thick rounds or half-moons. Return the sliced cucumbers and any juices on the board back into the slow cooker, stirring gently to coat them in the spiced syrup.

Taste the syrup and adjust sweetness if needed by stirring in an extra teaspoon or two of sugar or honey while the mixture is still warm. Let the dessert sit on the WARM setting for 10 to 15 minutes to allow the flavors to meld and the cucumbers to soak up more of the syrup.

Serve the cucumbers warm in small bowls, spooning the spiced syrup over the top. Refrigerate any leftovers in a covered container and enjoy chilled or gently rewarmed within 3 days.

For additional flavor, you can add a pinch of ground ginger or nutmeg along with the cinnamon for a more complex spice profile. A tablespoon of fresh lemon juice stirred in at the end will brighten the flavors and balance the sweetness. If you prefer a richer dessert, add a tablespoon of butter to the slow cooker in the last 30 minutes of cooking to give the syrup a silky finish. For a lighter sweetness, reduce the granulated sugar to 1/3 cup and rely more on honey or maple syrup. You can also slice the cucumbers into thick chunks before cooking if you want them to soften more quickly and absorb more flavor, though this will change the look from whole cucumbers at the bottom of the slow cooker. If seeds are large and tough, you may choose smaller, thinner cucumbers (like Persian or mini cucumbers) for a more delicate texture. Food safety tips: Wash cucumbers thoroughly under running water and gently scrub the peel before placing them in the slow cooker, since they are cooked unpeeled. Use clean utensils and a clean cutting board when slicing the cooked cucumbers. Cool leftovers promptly and store them covered in the refrigerator, using them within 3 days. Reheat gently until steaming but not boiling to maintain texture.