# What You'll Need:
→ Apple Filling
01 - 5 medium apples (Granny Smith or Honeycrisp), peeled, cored, and sliced
02 - 2 tablespoons lemon juice
03 - 3 tablespoons granulated sugar
04 - 1 teaspoon ground cinnamon
05 - 1/4 teaspoon ground nutmeg
06 - 2 tablespoons all-purpose flour
→ Peanut Butter Crumble Topping
07 - 3/4 cup rolled oats
08 - 1/2 cup all-purpose flour
09 - 1/2 cup light brown sugar, packed
10 - 1/2 teaspoon ground cinnamon
11 - 1/4 teaspoon salt
12 - 1/2 cup creamy peanut butter
13 - 1/4 cup unsalted butter, melted
# Steps to Follow:
01 - Preheat the oven to 350°F (175°C). Grease a 9-inch (23 cm) baking dish.
02 - In a large bowl, toss apple slices with lemon juice, sugar, cinnamon, nutmeg, and flour until evenly coated. Spread the apple mixture evenly in the prepared baking dish.
03 - In a separate bowl, combine oats, flour, brown sugar, cinnamon, and salt. Add the peanut butter and melted butter. Mix with a fork or your fingers until the mixture forms coarse crumbs.
04 - Sprinkle the crumble topping evenly over the apples.
05 - Bake for 40 minutes, or until the topping is golden and the apples are bubbly and tender.
06 - Let cool for 10 minutes before serving. Serve warm, optionally with vanilla ice cream or whipped cream.