This 4-ingredient slow cooker spring hazelnut crunch is the kind of simple dessert that fits right into a busy farm kitchen or a small-town Sunday potluck. You start by dumping raw, roughly chopped hazelnuts straight into the slow cooker, then add just three more pantry-friendly ingredients and let the gentle heat do the work. The end result is a sweet, buttery, toasty nut crunch that reminds me of the praline-style treats church ladies used to make, but with the ease of a slow cooker and the bright, nutty flavor that feels just right for spring gatherings, graduations, and after-supper treats.
Serve this hazelnut crunch slightly warm, spooned over vanilla ice cream, yogurt, or a simple bowl of berries. It’s also lovely cooled completely and broken into pieces to sprinkle over pudding, fruit salad, or even morning oatmeal. For company, I like to pile the cooled clusters into a glass jar or pretty bowl and set it out with coffee or tea, letting folks grab a handful as they visit around the table.
Slow Cooker Spring Hazelnut CrunchServings: 6-8
Ingredients
2 cups raw roughly chopped hazelnuts
1 cup sweetened condensed milk
4 tablespoons unsalted butter, cut into small pieces
1/2 cup granulated sugar
Directions
Lightly grease the bottom and lower sides of a small to medium slow cooker (about 3–4 quarts) with a bit of butter or nonstick spray to help prevent sticking.
Dump the raw roughly chopped hazelnuts in the bottom of the slow cooker, spreading them into an even layer so they toast and cook evenly.
In a small bowl, stir together the sweetened condensed milk and granulated sugar until the sugar is mostly dissolved. It will be thick, and that’s fine.
Pour the sweetened condensed milk mixture evenly over the hazelnuts in the slow cooker. Do not stir; just let it settle down between the nuts.
Scatter the butter pieces over the top. Again, do not stir. The butter will melt and mingle as it cooks, helping everything caramelize and crisp.
Cover the slow cooker with the lid and cook on LOW for 2 to 2 1/2 hours. During the last 45 minutes, check every 15 minutes, giving the mixture a gentle stir from the edges toward the center each time to prevent burning along the sides. The mixture is done when the hazelnuts smell toasty, the liquid looks thick and golden, and you see some sticky, bubbly caramel-like syrup.
Once cooked, turn off the slow cooker and remove the crock from the heating base, if possible, to stop the cooking. Give the mixture one last stir to coat all the hazelnuts in the caramel.
Line a baking sheet with parchment paper. Carefully spoon or pour the hot hazelnut mixture onto the parchment and spread it into an even layer about 1/2 inch thick. Work fairly quickly, as it will begin to set as it cools.
Let the hazelnut crunch cool completely at room temperature, 45 to 60 minutes, until firm. Once cooled and set, break into bite-size clusters or shards.
Store the cooled hazelnut crunch in an airtight container at room temperature for up to 5 days, separating layers with parchment paper if needed to prevent sticking.
Variations & Tips
For a chocolate twist, drizzle 1/2 cup melted chocolate chips (milk, dark, or white) over the cooled hazelnut crunch, then let it set before breaking into pieces. A little vanilla (1 teaspoon) or a pinch of cinnamon stirred into the sweetened condensed milk mixture before pouring it over the nuts adds a cozy bakery flavor. If you like a hint of salt, sprinkle 1/4 to 1/2 teaspoon flaky sea salt over the top right after you spread the hot mixture onto the parchment; the contrast of sweet and salty is wonderful. You can also mix in 1/2 cup shredded coconut or swap a portion of the hazelnuts for other raw nuts you have on hand, like pecans or almonds, keeping the total amount at 2 cups so the recipe sets properly. For a lighter sweetness, reduce the granulated sugar to 1/3 cup, understanding the crunch may be slightly less firm. Food safety tips: Always use raw, fresh-smelling hazelnuts; discard any that smell rancid or musty. The slow cooker mixture will be extremely hot and sticky, so handle with care and keep children away from the crock and the freshly poured sheet of hazelnut crunch to avoid burns. Cool the mixture fully before storing to prevent moisture buildup and potential spoilage, and use clean, dry utensils and containers to keep the candy fresh.
