01 -
Heat oven to 350°F (175°C). Lightly grease an 11x7-inch or 9x9-inch baking dish with butter or nonstick spray.
02 -
In a large bowl, gently toss sliced apples with brown sugar, granulated sugar, orange juice, and lemon juice until evenly coated. Pour into the prepared dish and spread into an even layer.
03 -
Open the snickerdoodle mix and pour contents — including the cinnamon-sugar packet — into a medium bowl. Stir together to combine. Evenly sprinkle the entire mixture over the apples. Do not stir.
04 -
Slowly drizzle melted butter evenly across the surface, letting it seep into the dry mix. Scatter chopped nuts over the top for crunch and richness.
05 -
Place dish in oven and bake for 35–40 minutes, or until the topping is deeply golden, the edges are bubbling, and apples are fork-tender.
06 -
Let cool 10–15 minutes before serving. Scoop into bowls and crown each portion with a generous scoop of vanilla or cinnamon ice cream. Optional: dust with a pinch of cinnamon-sugar.