Dump frozen raspberries in the crock and 4 other ingredients to get a treat so delicious your husband will be begging for more!

This 5-ingredient slow cooker raspberry sweet is my kind of Earth Day treat: minimal effort, minimal dishes, and it lets those bright, tart raspberries really shine. You literally dump frozen raspberries into the crock, add four pantry staples, flip on the slow cooker, and walk away. A few hours later, you’ve got a warm, jammy, berry dessert that tastes like you fussed over it all afternoon. It’s perfect for busy weekdays when you still want something a little special after dinner—and yes, it’s absolutely the kind of dessert that has your husband wandering back into the kitchen asking if there’s any more left.

Serve this warm raspberry sweet spooned over vanilla ice cream, Greek yogurt, or a simple store-bought pound cake for an easy dessert that feels a bit fancy. For a lighter option, pair it with plain yogurt and granola for an Earth Day-inspired parfait. It’s also great with whipped cream and a sprinkle of crushed graham crackers or shortbread cookies for some crunch. Add a mug of coffee or hot tea on the side, and you’ve got a cozy, low-effort dessert that works after dinner or as a sweet weekend brunch dish.

Servings: 6

4 cups frozen raspberries (about 16 ounces)

Lightly grease the inside of a small to medium slow cooker (about 3–4 quarts) with a bit of butter or nonstick spray to help with cleanup.

Dump the frozen raspberries straight into the bottom of the slow cooker, spreading them out into an even layer. They should be fully frozen when they go in.

In a small bowl, whisk together the granulated sugar and cornstarch until no white clumps of cornstarch remain. This helps the thickener distribute evenly.

Sprinkle the sugar–cornstarch mixture evenly over the frozen raspberries in the slow cooker.

Drizzle the maple syrup (or honey) over the top of the raspberries and sugar mixture, then pour in the vanilla extract.

Using a spatula or large spoon, gently toss everything together right in the slow cooker until most of the raspberries are coated. It’s okay if some berries stay clumped or frozen; they will break down as they cook.

Cover the slow cooker with the lid and cook on LOW for 2 1/2 to 3 hours, until the raspberries are soft, saucy, and bubbling around the edges. Stir once about halfway through if you’re home, to help the thickening happen evenly, but it’s not absolutely required.

Once the mixture is glossy, thickened, and jammy, turn off the slow cooker. Give it a good stir and let it sit, covered, for 10–15 minutes to thicken a bit more as it cools slightly.

Taste carefully (it will be hot) and adjust sweetness if needed by stirring in an extra tablespoon or two of sugar or maple syrup.

Serve the warm raspberry sweet spooned over ice cream, yogurt, cake, or simply in bowls with a little whipped cream. Store leftovers in an airtight container in the fridge for up to 4–5 days, reheating gently in the microwave or on the stovetop.

For a brighter flavor, add 1–2 teaspoons of fresh lemon juice or finely grated lemon zest along with the vanilla. For a richer, dessert-like feel, stir in 1–2 tablespoons of softened butter at the end until melted and glossy. If you love texture, add 1/4–1/3 cup chopped nuts (like toasted almonds or pecans) or granola just before serving so they stay crunchy. To keep it refined-sugar-light, replace the granulated sugar with coconut sugar or use all maple syrup or honey, adjusting to taste. For a thicker, more pie-filling consistency, add an extra 1 tablespoon of cornstarch; for a looser, saucier topping, reduce the cornstarch to 1 tablespoon. You can also swap in part of the raspberries for other frozen berries (like blueberries or blackberries) as long as the total amount stays the same. Food safety tips: Always start with properly frozen berries from a reliable source; do not refreeze thawed berries multiple times. Make sure the mixture reaches a steady simmer in the slow cooker so it heats through thoroughly. Cool leftovers promptly and refrigerate within 2 hours in a shallow container. Reheat only the portion you plan to eat, and discard if it has been left at room temperature for more than 2 hours.