Apple Slab Pie: The Ultimate Easy Dessert for a Crowd


 


For the Crust

  • 3 cups all-purpose flour

  • 1 tsp salt

  • 1 tbsp sugar

  • 1 cup cold butter, cubed

  • 6-8 tbsp ice water

For the Apple Filling

  • 8 cups thinly sliced apples (Granny Smith + Honeycrisp mix)

  • ¾ cup brown sugar

  • ¼ cup granulated sugar

  • 3 tbsp cornstarch

  • 2 tsp cinnamon

  • ½ tsp nutmeg

  • 1 tbsp lemon juice

  • 2 tbsp butter, diced

For the Glaze (Optional)

  • 1 cup powdered sugar

  • 2 tbsp milk

  • ½ tsp vanilla extract


👩‍🍳 Step-by-Step Instructions

1. Make the Crust

  1. Pulse flour, salt, sugar, and butter in a food processor until crumbly.

  2. Add ice water 1 tbsp at a time until dough comes together.

  3. Press into a 10x15-inch jelly roll pan (or 9x13-inch for thicker crust).

2. Prepare the Filling

  1. Toss apples, sugars, cornstarch, spices, and lemon juice in a bowl.

  2. Spread evenly over crust. Dot with butter.

3. Add Top Crust & Bake

  1. Roll out remaining dough, place over apples, and seal edges.

  2. Cut slits to vent. Brush with egg wash (1 egg + 1 tbsp water).

  3. Bake at 375°F (190°C) for 45-55 mins until golden.

4. Glaze & Serve

  • Cool 30 mins, then drizzle with glaze (if using).

  • Cut into squares and serve warm with ice cream!


💡 Pro Tips

✅ Use a mix of apples – Tart + sweet = best flavor
✅ Prevent soggy crust – Toss apples with cornstarch
✅ Freeze before baking – Wrap tightly, bake from frozen (+10 mins)