Molly Yeh's Blueberry Speculoos Slab Pie 🫐 | Girl Meets Farm | Food Network

Traditional fruit pies can present a logistical headache in professional kitchens, particularly when it comes to portion control and maintaining pastry texture. In this video, Molly Yeh demonstrates a practical solution with her blueberry slab pie. By shifting the format from a deep, round tin to a flat sheet pan, chefs can achieve a far higher pastry-to-filling ratio while simplifying the portioning process for high-volume service.

Solving the Soggy Bottom

The primary challenge with any large-format fruit pie is moisture control. Berries release significant amounts of juice during baking, which can easily penetrate the bottom crust and make it wet and heavy. Yeh addresses this structural weakness by applying a barrier layer of speculoos spread directly onto the rolled pastry base before adding the fruit. Because the spread is rich in fats, it creates an insulating shield that prevents the wet blueberry filling from coming into direct contact with the raw pastry.

Beyond its structural function, this barrier technique adds a complex flavour profile to the bake. The spiced, caramelised biscuit notes of the speculoos offset the sharp acidity of the blueberries, eliminating the need for heavy spice additions in the fruit mix itself. Additionally, this barrier method is highly versatile; chefs can swap the cookie butter for other fat-based spreads, such as chocolate hazelnut or frangipaneFrangipaneA sweet almond-based cream commonly used as a pastry filling., depending on the seasonal fruit profile.

Optimising for Banquet Service

For pastry chefs catering large events, the slab pie format is vastly superior to traditional round pies. Baking on a flat tray ensures uniform heat distribution and more consistent baking times across the entire surface. Once cooled, the pie can be sliced cleanly into uniform squares, making it ideal for buffet presentation, plated desserts, or high-volume catering.

To guarantee clean slices, the blueberry filling is cooked down to a thick, jam-like consistency. This reduction, combined with the sealing power of the speculoos spread, ensures the filling stays in place once cut, rather than running across the plate. This approach gives chefs a reliable, highly transportable dessert format that holds its structural integrity under service conditions.