01 -
In a medium bowl, combine 1 1/2 cups fresh rhubarb, finely diced, with 2 tbsp granulated sugar and 1 tbsp cornstarch. Set aside to allow the rhubarb to release some juices, which will thicken during baking for your Best Soft Brown Sugar Rhubarb Cookies.
02 -
In a separate large bowl, whisk together 2 1/4 cups all-purpose flour, 1 tsp baking soda, 1/2 tsp salt, 1 tsp ground cinnamon, and 1/4 tsp ground nutmeg. This ensures even distribution of flavors and leavening for the cookies.
03 -
In a stand mixer with the paddle attachment (or a large bowl with a hand mixer), cream 1 cup (2 sticks) unsalted butter, softened, with 1 1/2 cups light brown sugar, packed, and 1/4 cup granulated sugar until light and fluffy.
04 -
Beat in 1 large egg until just combined, then mix in 1 tsp vanilla extract. Scrape down the sides of the bowl to ensure all ingredients are fully incorporated for the Best Soft Brown Sugar Rhubarb Cookies.
05 -
Gradually add the whisked dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix the dough, as this can lead to tough cookies.
06 -
Gently fold in the prepared rhubarb mixture until evenly distributed throughout the dough. Avoid overmixing to keep the rhubarb pieces intact and prevent the dough from becoming too wet.
07 -
Preheat oven to 375°F (190°C). Drop rounded tablespoons of dough onto parchment-lined baking sheets, about 2 inches apart. Bake for 10-12 minutes, or until edges are golden and centers are set. Let your Best Soft Brown Sugar Rhubarb Cookies cool.