170 g (12 Tbsp.) unsalted butter
210 g (1 ¼ cups) powdered jaggery, sifted (see note)
1 egg
1 tsp. vanilla extract
80 g (¼ cup) molasses
2 heaping Tbsp. tamarind paste (see note)
330 g (2 ⅝ cups) all-purpose flour
1 tsp. baking soda
1 tsp. kosher salt
Pinch of fleur de sel
2 tsp. ground ginger
1 tsp. garam masala (see note)
50 g (½ cup) granulated sugar, for rolling
In a medium bowl, combine flour, baking soda, salts, ginger, and garam masala. Whisk to combine, then set aside.
Using a stand mixer fitted with the paddle attachment, cream the butter and jaggery until light and fluffy (about 3-4 minutes on medium speed). Add the egg and vanilla to the butter mixture and mix to combine (about 1 minute on medium speed).
In a small bowl, combine the molasses and tamarind paste. Add to butter mixture and mix to combine (about 1 minute on medium speed).
Reduce mixer speed to low, then add the dry ingredients in 3 installments, scraping down sides of bowl between additions, until combined (about 1-2 minutes).
Transfer the dough to a resealable glass or plastic container and chill thoroughly, at least 2 hours and up to 3 days.
Preheat oven to 350 degrees Fahrenheit and line baking sheets with parchment paper. Put granulated sugar in a small bowl. Portion and shape dough into 20-gram (1 Tbsp.) balls. Drop each into the bowl of sugar and roll to coat. Transfer cookies to the prepared baking sheets, leaving at least 2 inches between each.
Bake until the cookies are golden underneath but still quite tender (they will firm up as they cool), 13-15 minutes. Let cool 2-3 minutes on baking sheets and transfer to wire racks to cool completely. The cookies will crisp as they cool. Cookies will keep in an airtight container at room temperature for 1 week.
As I learned, sifted cane-derived powdered jaggery, which is available in most South Asian grocery stores and online, is easier to measure and cream than the jaggery sold in a block, and more suitable for use in cakes and cookies.
I make tamarind paste from blocks of tamarind pulp, but ready-made paste is available online. Avoid purchasing tamarind concentrate; it has a molasses-like consistency, and is less fruity in flavor.
I roast and grind my own garam masala, which is heavy on the cinnamon, cloves, and cardamom. Any store-bought garam masala can be substituted, though it might impart additional flavor notes, depending on its exact spice blend.