Old-Fashioned Peach Dump Cake Recipe (Easy Cake Mix Dessert)

If you want a warm, cozy dessert with minimal prep, this old-fashioned peach dump cake is the one to make. It uses cake mix and canned peaches (with juice) to create a soft, spoonable cake with a sweet peach filling, no mixer, no complicated steps, and no fussy layering. It’s called a “dump cake” because you dump the ingredients together, spread them into a pan, and bake until golden and bubbling.

Why you’ll love this peach dump cake

• Fast to assemble: simple pantry ingredients and quick mixing
• Beginner-friendly: no special baking skills needed
• Great for gatherings: perfect 9×13 pan size for potlucks and family desserts
• Classic flavor: peaches + warm spices like cinnamon and nutmeg
• Comfort-food texture: fruity, soft, and cake-like with a lightly crisp top

What makes this version “old-fashioned”

Traditional dump cake recipes lean on canned fruit, simple spices, and an easy bake-and-serve style that feels like vintage home baking. In this version, rolled oats and brown sugars add a little extra texture and a deeper caramel-like sweetness that pairs well with peaches.

Quick answers (for easy baking success)

• Can I use canned peaches? Yes, this recipe is designed for canned peaches with their juice/syrup.
• Do I drain the peaches? No. Keep the juice; it helps create the filling and keeps the cake moist.
• What pan size works best? A 9×13-inch (23×33 cm) pan.
• How long does it bake? About 50 minutes at 380°F (193°C), until set and lightly browned.

Peach Dump Cake Recipe

Ingredients (US + Metric)

• 16 oz cake mix (about 454 g)
• ½ cup rolled oats (about 45 g)
• 30 oz canned peaches, with juice (about 850 g / 850 mL with syrup/juice)
• ½ tsp cinnamon powder (about 1.3 g)
• ½ tsp nutmeg powder (about 1.1 g)
• ¼ cup light brown sugar (about 55 g)
• 2 tbsp brown turbinado sugar (about 25 g)
• Butter for brushing the baking pan (about 10 to 15 g, as needed)
• Powdered sugar, to taste (as needed)

Instructions

1. Preheat oven to 380°F (193°C).
2. Cut peaches into quarters without discarding the juice.
3. Add cake mix to a large bowl. Add rolled oats, brown sugar, cinnamon, and nutmeg; mix.
4. Add peaches with all their juice and mix well.
5. Butter a 9×13-inch (23×33 cm) pan. Add the mixture and smooth it out.
6. Sprinkle Natural brown sugar on top and bake 50 minutes at 380°F (193°C).
7. Sprinkle powdered sugar on top.
8. Enjoy.

Storage Advice

How to store peach dump cake

• Room temperature: If your kitchen is cool, you can cover the pan tightly and keep it at room temperature for up to 1 day. For best freshness and food safety, refrigerate after that.
• Refrigerator: Cover the pan or transfer leftovers to an airtight container and refrigerate for 3–4 days.
• Freezer: For longer storage, portion into freezer-safe containers and freeze for up to 2–3 months.

How to reheat

• Microwave (fastest): Warm a serving for 20 to 40 seconds until heated through.
• Oven (best for texture): Reheat at 325°F (163°C) for 10 to 15 minutes (cover loosely with foil to prevent over-browning).

Make-ahead notes

This dessert tastes best warm the day it’s baked, but it still reheats well. If making ahead for an event, bake it earlier the same day and rewarm before serving.

Recipe Tips for the Best Peach Dump Cake

1) Don’t drain the peaches

This recipe is designed for canned peaches with their juice/syrup. The liquid helps create the saucy peach layer and keeps the cake moist.

2) Mix until just combined

When you add the peaches and juice, stir until the dry mix is evenly moistened. Overmixing isn’t necessary — €”just aim for no large dry pockets.

3) Use the right pan size

A 9×13-inch (23×33 cm) pan gives the best thickness and even baking. A smaller pan may need extra bake time and can brown too quickly on top.

4) Know when it’s done

Your dump cake is ready when:

• the center looks set (not wet or soupy),
• the edges are bubbling, and
• the top is lightly golden.
  If the top browns too fast, loosely cover with foil for the final 10–15 minutes.

5) Customize the flavor (easy swaps)

• More spice: Add an extra ¼ tsp cinnamon for a stronger warm flavor.
• Vanilla boost: Add 1 tsp vanilla extract when mixing in the peaches.
• Extra crunch: Add ¼ to ½ cup (25–60 g) chopped pecans or walnuts.
• Less sweet: Use peaches packed in juice instead of heavy syrup (still include the liquid).

6) Serving ideas

Peach dump cake is delicious with:

• vanilla ice cream
• whipped cream
• plain Greek yogurt (nice balance if you want less sweetness)