Mom's Best Recipes
Recipe

Shoo Fly Pie

A Pennsylvania Dutch classic with a gooey molasses base and a buttery crumb topping that bakes into crisp, sweet edges.

Author By Matt Campbell
4.8
A thick slice of shoo fly pie on a small plate, showing a dark gooey molasses layer under a golden crumb topping, on a cozy kitchen table with soft natural light
Jump to Recipe

Shoo fly pie is one of those old-school desserts that looks humble, then immediately wins you over. You get this deep, molasses-y filling that turns almost caramel-like as it bakes, plus a buttery crumb topping that stays crisp on the edges and soft where it sinks into the gooey layer. It’s sweet, yes, but it’s also kind of toasty and complex in a way that makes you go back for “just a sliver” and then accidentally finish the slice.

This version is the gooey style, meaning the bottom layer stays soft and jammy instead of baking up fully cake-like. It’s made with pantry stuff, no fancy technique, and it tastes like a bake sale in the best possible way.

Dark molasses being poured from a measuring cup into a mixing bowl on a kitchen counter, with brown sugar and spices nearby

Why It Works

  • Gooey center, crisp top: We build a sandy crumb topping first, then stir in a hot water and baking soda mixture that helps the molasses foam and encourages that signature soft bottom layer.
  • Big flavor from basic ingredients: Molasses and brown sugar do the heavy lifting, with a little cinnamon and optional ginger to round it out.
  • Low drama: No tempering, no custard, no water bath. If you can whisk and sprinkle crumbs, you can make shoo fly pie.
A glass pie dish filled with dark molasses filling and generously covered with pale crumb topping before baking on a kitchen counter

Pairs Well With

Recommended

Pecan Pie

Pecan Pie

Buttery crust, toasted pecans, and a glossy filling that slices clean. This pecan pie is classic, cozy, and totally doable for home bakers.

Bourbon Pecan Pie

Bourbon Pecan Pie

Gooey, toasty, and just boozy enough. This bourbon pecan pie bakes up with crisp edges, a custardy center, and big brown sugar flavor.

Pecan Chocolate Pie

Pecan Chocolate Pie

A cozy pecan pie upgrade with melted chocolate, crisp pecans, and a gooey center that slices clean. Perfect for holidays or any random Wednesday.

Classic Sachertorte

Classic Sachertorte

Make a true Sachertorte at home: rich chocolate cake, apricot jam filling, and a smooth chocolate glaze. Tips for a flat top, glossy finish, and clean slices.

Storage Tips

Food safety note: This pie contains egg. Once it’s fully cooled, refrigerate for best quality and safety, especially if your kitchen is warm.

Room temperature: If your kitchen is cool, you can cover the pie and keep it at room temp for up to 1 day. If it’s warm or humid, skip the counter and refrigerate.

Refrigerator: Cover and refrigerate up to 5 days. The top will soften a bit, which is normal.

Freezer: Wrap slices tightly and freeze up to 2 months. Thaw overnight in the fridge.

Reheat tip: If you want to revive the crumb texture, warm slices on a sheet pan in a 300°F oven for about 8 to 10 minutes.

Common Questions

What is shoo fly pie supposed to taste like?

Think molasses cookie meets sticky toffee. It’s rich and sweet, with a slightly bittersweet, toasted depth from the molasses and a buttery, crumbly top.

What is the difference between “wet bottom” and “dry bottom” shoo fly pie?

Wet bottom (what this recipe makes) has a gooey layer that settles at the bottom. Dry bottom is more cake-like throughout, with less of that sticky layer.

Do I have to use unsulphured molasses?

Yes, use unsulphured. For the best flavor, go with dark (robust) molasses. Avoid blackstrap unless you love intense bitterness, because it can overpower the pie.

Why do you dissolve baking soda in hot water?

It helps the molasses mixture foam and lighten a bit, and it can encourage that classic texture where some crumbs float and some sink. The wet bottom also comes from the liquid-to-crumb ratio and how everything hydrates as it bakes.

Can I use a store-bought crust?

Absolutely. A refrigerated 9-inch pie crust works great here. If you’re using a frozen crust, follow the package guidance (some need to be thawed first). You typically do not need to par-bake for shoo fly pie, but if you’re worried about a soft bottom, you can dock the crust with a fork and give it a light par-bake at 375°F until it’s just starting to take on the faintest hint of color (often around 8 to 12 minutes, depending on your pan and crust).

Should I use a deep-dish crust?

Stick with a standard 9-inch pie crust (not deep-dish). Deep-dish can bake a little differently and may throw off the wet-bottom texture. If deep-dish is all you have, bake on a sheet pan and keep an eye on doneness, since it may need a bit longer.

How do I know it’s done?

Look for a deep golden crumb top and edges that look set. The center should not look liquidy or slosh if you gently nudge the pan. Wet-bottom shoo fly pie will still be soft inside, and it firms up a lot as it cools.

The first time I tried shoo fly pie, I expected something polite and old-timey, like it would be good with coffee but not exactly thrilling. Then I took a bite and got hit with that dark molasses depth and the crumb topping doing its buttery thing, and I immediately understood why people get protective about their family recipe.

Now it’s one of my favorite “pantry dessert” moves. It feels like baking with your sleeves pushed up, flour on the counter, and zero pressure to be fancy. Just a pie that shows up and does the job.