From left: Cherry apple strudel and two slices of apple strudel, all from Little Austria; one slice each of apple strudel from German Gourmet and Heidelberg Pastry Shoppe. (Deb Lindsey/For The Washington Post)

Apple strudel has a way of evoking nostalgia. (This is almost certainly aided by its immortalization in the lyrics of a certain earworm by Rodgers and Hammerstein.) For Helene Gallent, owner of Little Austria, a small Leesburg, Va., company specializing in Austrian sweets, apple strudel is the taste of childhood spent in the southern Austrian region of Carinthia. The sweet pastry filled with cinnamon-spiced apples is a welcome sight any time of year, but perhaps even more so in autumn.

A brief history lesson, with help from "The Oxford Companion to Sugar and Sweets" (Oxford University Press, 2015): Strudel, with a number of fillings savory or sweet, is found throughout central and western Europe. The first written recipe dates to the 1696 manuscript "Koch Puech." Its connection to German-speaking nations ("strudel" means "whirlpool" in German — a reference to the swirly appearance some types have when sliced) provides a boost of popularity come Oktoberfest season, in mid- to late September.

1. Sugar and spice

Naturally, cinnamon is the spice of choice here; Little Austria treads lightly with the spice while also keeping the sweetness in check. German Gourmet’s strudel is more cinnamon-forward.

2. Crust

Gallent stretches her sunflower-oil-based dough into a super thin sheet, which, once rolled with the apple filling and brushed with butter, creates a multilayered, slightly crisp crust. German Gourmet and Heidelberg Pastry Shoppe use puff pastry, creating a flaky, slightly doughier shell.

3. Fruit

Nearly any variety of fruit can be used, but apple seems to be the most popular; likewise, the slice and texture of the filling is quite variable. Some apples, like those used by Little Austria, are thinly sliced; German Gourmet’s filling is chunkier, while Heidelberg Pastry’s recalls apple sauce, as the filling is cooked before going into the strudel.

4. Raisins

Love it or hate it, the dried fruit is a common addition. It adds a dimension of sweetness and a bit of chew.

Find Little Austria's apple strudel at Portside Coffee and Bakery (446 Madison Trade Plaza SE, Leesburg; 571-293-3511); Saturdays at the Marymount Farmers Market (2807 N. Glebe Rd., Arlington; no phone); and Sundays at the Westover Farmers Market (1644 N. McKinley Rd., Arlington; no phone). Apple strudel is also available at Heidelberg Pastry Shoppe (2150 N. Culpeper St., Arlington; 703-527-8394) and German Gourmet (5838 Columbia Pike, Falls Church; 703-379-8080).

A previous version of this article gave an incorrect phone number for Portside Coffee and Bakery.