But alas, baking experiments hardly pan out as expected.
From the day the video materialized on my feed, I was determined to recreate it, or at least a version of it.
Slab pies were a variation of the circular Thanksgiving centerpiece that utilized a sheet pan. The intent was to serve a large crowd without fear of distribution uncertainties. In my case, I had hoped for it to be the answer to quickly ripening peaches.
Upon rolling, I learned of the potential rationale behind splitting the dough into smaller portions. For starters, the smaller discs were easier to roll. I struggled tremendously with flattening the rectangular block into a usable shape. They would also enable more uniform thawing, while my single slab saw pockets of melting butter on the surface and a relatively rigid centre.
- 2 cups = 2 x 136 g = 272 g AP flour (276 g used)
- 2 cups = 2 x 96 g = 192 g rolled oats
- 2/3 cup = 50 g (1/3 cup) golden yellow sugar + 50 g (1/3 cup) brown sugar
- 2.5 sticks = 2.5 x 113 g = 282 g unsalted butter
- 1/2 tsp cinnamon
- pinch of salt *
The mixture was crumbly and excessively buttery, but generally easy to distribute. Converting kosher salt additions to table salt is truly a science: often do I overshoot, so I've been erring on the side of caution lately.
In my haste, I had forgotten to halve the streusel recipe for my smaller sheet pan. The blunder wouldn't be obvious until slicing into the pie bars, for the weightiness of the oats would gradually compress the softened peach slices while baking. Oats would boast a craggy consistency and soft crunch. Raw turbinado sugar would have improved both crunch and complexity, and thus is recommended if on hand (I had ran out).
Given that the pan size and contents had just about doubled, cooling time would also be prolonged. I am not one to portion out servings directly in my baking dish, as knives can damage the surface. In advance of inserting the pie dough base, I had laid several strips of parchment for ease of release. These strips would prove handy once the pie cooled, but should not be handled within two hours of the pie being removed from the oven, as structural integrity is compromised. When the bottom of the pan is no longer warm, it can be removed.
Cutting the entire slab into bite-sized squares would require more finesse. A straight knife caused the pie edges to crack and the oat streusel to be flung in various directions, making for a terribly messy tabletop. Switching to a serrated knife is advised, as it enables sharper lines between the aforementioned components.
The video formats are also quite annoying/frustrating for in-kitchen use, as the ingredient amounts are not consistently presented in metric units and baking times/directions are not included in the description box.
With a box of yellow plums slowly wrinkling in the fridge, I set out to salvage the specimens in a frangipane tart. These small, spherical objects were severely sour, to the point of being inedible. My resolve was to roast them with spices, as Claire had done in her Biscoff Icebox Cake, lay them on top of frangipane for baking, then glaze them in the event that they were still too sharp to stomach.
- 7 (very sour) yellow plums, quartered and pits removed
- Roasted with cinnamon sticks and star anise
- Simmered with sugar and tequila
- Reduced and thickened with starch slurry
Not a single element was scaled throughout this process, for it wouldn't have mattered drastically anyway. I shortly learned that roasting at 350 F for 40 mins was far too long: the tops scorched and the flesh turned to mush. I'd be unable to incorporate them in a tart, thus pureeing was the only alternative. Removing the spices, the overly ductile segments were transferred to a medium saucepot. An immersion blender would struggle to pulverize the pieces before the addition of water for increased volume. Lemon juice, copious amounts of golden yellow sugar, and a splash of tequila would be included before simmering. Finally, a starch slurry would thicken the mixture. Scorched skins would be removed using a sieve and the paste would transferred to a heat-safe bowl and covered in cling film. A light caramel tone would emerge, representative of golden yellow sugar and yellow plum flesh. The consistency was quite loose in spite of its sugar and starch content, though retained lovely spiced aromas, tinged with a dose of smokiness from the tequila. Given that the concoction was unable to hold its shape, I feared smoothing across a tart would cause moisture to seep into the shell and underlying layer over time.
Both the tart shell and frangipane had been made ahead of time, as I had planned to incorporate the plums the next day after roasting. With the fresh fruit element unusable, I merely continued with an Almond Frangipane Tart. (Note that, while frangipane implies the presence of almond, further slivers adorned the surface.)
Ingredients
- 190 g AP flour
- 60 g icing sugar
- 1/4 tsp salt
- 130 g unsalted butter, cut into small pieces
- 1 egg yolk
- Egg yolk is an annoying yet non-negotiable inclusion.
- Rolling out the tart shell is pivotal; DO NOT press in, as SK says.
- Allow for thawing time before rolling
- The tart crust does not shrink during blind-baking/par-baking.
- Mini tarts are easier to handle, as they detach easily from the moulds, bake faster, and cool faster, facilitating the process of portioning out the frangipane. The only constraint is elimination of potential fruit toppings.
- 75 g almond flour
- 10 g AP flour
- 90 g granulated sugar *
- 85 g unsalted butter, softened
- 1 large egg
- 1/2 tsp almond extract
- 1 tsp umeshu brandy
I could have likely used less sugar (perhaps a 25-30% reduction?), as the filling was far too sweet in the absence of without fruit. SK instructs use of either almond extract or brandy, though using both did not impose negative effects. The additional liquid did not hurt here. I did not have regular brandy on hand, so of course I took to my umeshu rendition.
All in all, the road to mastery of frangipane is progressive, but not linear. Temperature control is pivotal, as in most baking projects, as is working swiftly and concisely.
The inclusion of egg contributes to a puffing action, allowing the filling to partially encompass whatever fruit slices are laid on top. Aeration of the single egg is important, though hardly mentioned in most recipes. Meanwhile, majority of online sources are observed to require a rest time of 2-3 hours in the fridge before use. I have been unable to determine the significance for this step, however.
Leftover dough would enable two mini tarts to be formed. In sampling both the full-size tart slices and handheld portions, the smaller tarts boasted better ratios of crust and filling, making for a harmonious bite. Proper slices featured a greater amount of frangipane, thus were a suitable medium for showcasing seasonal fruit.