For a slightly tarter flavor, you can swap one can of strawberry pie filling for a can of mixed berry or cherry pie filling—still three ingredients, just a little twist. If your family likes extra texture on top, sprinkle a small handful of chopped pecans or sliced almonds over the dry cake mix before drizzling on the butter (this technically adds a fourth ingredient, but it’s a nice optional touch). For picky eaters who prefer things less sweet, serve their portion with a bigger scoop of vanilla ice cream or a spoonful of plain yogurt to balance the sweetness. You can also use white cake mix instead of yellow for a lighter flavor, or strawberry cake mix for an even more berry-forward dessert. If your slow cooker runs hot, check at the earlier cook time so the edges don’t get too dark; every slow cooker has its own personality, so the first time you make this, keep an eye on it toward the end. Leftovers reheat well in the microwave—just warm gently and add fresh ice cream or whipped cream to bring it back to that just-made, neighbor-brought-it-over feeling.