May Day Comfort: Just 3 ingredients. I make it when I want dinner's sweet ending handled hours ahead.

This 3-ingredient slow cooker May Day bake is my go-to when I want a cozy, sweet ending to dinner taken care of hours ahead. It reminds me of the simple dump cakes church ladies used to bring to our small-town potlucks, but this one practically makes itself while you go about your day.

A bag of frozen berries, a box of cake mix, and a little butter melt down into a bubbling, deep indigo fruit layer under a pale golden, porous crust. It’s the kind of dessert you can throw together between helping with homework and folding laundry, then forget about until it’s time to scoop it up warm after supper.

Serve this slow cooker May Day bake warm, right out of the crock, spooned into bowls. It’s lovely on its own, but a scoop of vanilla ice cream or a dollop of whipped cream really soaks into the golden crust and mingles with the indigo berry juices.

For something a little lighter, serve with plain or vanilla yogurt and a few fresh berries on top. Coffee, hot tea, or a small glass of cold milk all pair nicely, especially if you’re enjoying it as a relaxed Sunday dessert with family gathered around the table.

3-Ingredient May Day Slow Cooker Berry Bake

Servings: 6-8

Ingredients

1 (32-ounce) bag frozen mixed berries (preferably with blueberries and blackberries, unthawed)
1 (15.25-ounce) box yellow or vanilla cake mix (dry, unprepared)
1/2 cup (1 stick/8 tablespoons) unsalted butter, melted

Directions

Lightly grease the inside of a 4- to 6-quart slow cooker with cooking spray or a thin layer of butter to help prevent sticking and make cleanup easier.

Pour the frozen mixed berries straight from the bag into the bottom of the slow cooker. Do not thaw them; using them frozen helps create that deep indigo, bubbling fruit layer as they slowly release their juices.

Spread the berries into an even layer, making sure they cover the bottom so the juices will rise up and bubble around the crust as it cooks.

Evenly sprinkle the dry cake mix over the berries, covering them completely. Try not to stir; you want the cake mix to sit on top so it bakes into a pale golden, slightly porous crust while the fruit bubbles underneath.

Slowly drizzle the melted butter over the surface of the dry cake mix, aiming to moisten as much of the mix as you can. A few dry patches are okay; they’ll hydrate from the berry juices as everything cooks.

Cover the slow cooker with its lid. Cook on HIGH for 2 1/2 to 3 hours, or on LOW for 4 to 5 hours, until the berry layer is thick, bubbling in deep indigo pockets around the edges and through small cracks, and the top crust is pale golden and set in the center. The surface should look slightly uneven and porous, like a soft cobbler topping.

Once done, turn off the slow cooker and let the dessert sit, covered, for about 15 to 20 minutes. This short rest helps the juices thicken slightly while still keeping everything warm and spoonable.

Spoon the warm May Day bake into bowls, digging down so you get both the glistening berry layer and the golden crust in each serving. Serve as is, or top with ice cream, whipped cream, or yogurt.

Variations & Tips

For picky eaters, you can use all blueberries instead of mixed berries for a milder flavor and smoother texture, while still getting that deep indigo color. If your family prefers a little tartness, choose a berry blend with more blackberries and raspberries; for sweeter results, stir 1/4 cup of granulated sugar into the frozen berries before adding the cake mix (this doesn’t change the 3-ingredient base, just an optional tweak).

A white, lemon, or butter cake mix can replace the yellow cake mix if that’s what you have on hand. To add a little crunch without complicating things, sprinkle 1/4 cup chopped nuts (like pecans or almonds) over the cake mix before drizzling on the butter. For a slightly lighter version, you can cut the butter down to 6 tablespoons; the crust will be a bit less rich but still tasty.

If you need this dessert to be dairy-free, use a dairy-free margarine or plant-based butter stick instead of regular butter, and be sure your cake mix is dairy-free. For gluten-free needs, choose a gluten-free yellow or vanilla cake mix and confirm your frozen berries are plain (no added sauces or thickeners).

Food safety tips: Always keep the berries frozen until they go into the slow cooker; do not let them sit out at room temperature for long periods. Make sure your slow cooker reaches and maintains a safe temperature by keeping the lid on while cooking and avoiding repeated lifting to peek. Once cooked, do not leave the dessert on the warm setting for more than 2 hours; refrigerate leftovers in a shallow container once cooled, and reheat portions gently in the microwave until steaming hot before serving again.